[go: up one dir, main page]

BG103751A - Метод за получаване на междинни съединения за синтез на пестициди - Google Patents

Метод за получаване на междинни съединения за синтез на пестициди

Info

Publication number
BG103751A
BG103751A BG103751A BG10375199A BG103751A BG 103751 A BG103751 A BG 103751A BG 103751 A BG103751 A BG 103751A BG 10375199 A BG10375199 A BG 10375199A BG 103751 A BG103751 A BG 103751A
Authority
BG
Bulgaria
Prior art keywords
synthesis
pesticides
interests
obtaining
obtaining interests
Prior art date
Application number
BG103751A
Other languages
English (en)
Other versions
BG64277B1 (bg
Inventor
Themistocles D'SILVA
Jean-Erick Angel
Original Assignee
Rhone-Poulenc Agro
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from GB9705316A external-priority patent/GB2324086A/en
Application filed by Rhone-Poulenc Agro filed Critical Rhone-Poulenc Agro
Publication of BG103751A publication Critical patent/BG103751A/bg
Publication of BG64277B1 publication Critical patent/BG64277B1/bg

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D231/00—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings
    • C07D231/02—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings
    • C07D231/10—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
    • C07D231/14—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • C07D231/38—Nitrogen atoms
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C243/00—Compounds containing chains of nitrogen atoms singly-bound to each other, e.g. hydrazines, triazanes
    • C07C243/10—Hydrazines
    • C07C243/22—Hydrazines having nitrogen atoms of hydrazine groups bound to carbon atoms of six-membered aromatic rings
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C251/00—Compounds containing nitrogen atoms doubly-bound to a carbon skeleton
    • C07C251/72—Hydrazones
    • C07C251/74—Hydrazones having doubly-bound carbon atoms of hydrazone groups bound to hydrogen atoms or to acyclic carbon atoms
    • C07C251/76—Hydrazones having doubly-bound carbon atoms of hydrazone groups bound to hydrogen atoms or to acyclic carbon atoms to carbon atoms of a saturated carbon skeleton
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C255/00—Carboxylic acid nitriles
    • C07C255/63—Carboxylic acid nitriles containing cyano groups and nitrogen atoms further bound to other hetero atoms, other than oxygen atoms of nitro or nitroso groups, bound to the same carbon skeleton
    • C07C255/65—Carboxylic acid nitriles containing cyano groups and nitrogen atoms further bound to other hetero atoms, other than oxygen atoms of nitro or nitroso groups, bound to the same carbon skeleton with the nitrogen atoms further bound to nitrogen atoms
    • C07C255/66—Carboxylic acid nitriles containing cyano groups and nitrogen atoms further bound to other hetero atoms, other than oxygen atoms of nitro or nitroso groups, bound to the same carbon skeleton with the nitrogen atoms further bound to nitrogen atoms having cyano groups and nitrogen atoms being part of hydrazine or hydrazone groups bound to the same carbon skeleton
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
    • C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
    • C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
    • C07D213/24—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with substituted hydrocarbon radicals attached to ring carbon atoms
    • C07D213/26—Radicals substituted by halogen atoms or nitro radicals
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
    • C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
    • C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
    • C07D213/24—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with substituted hydrocarbon radicals attached to ring carbon atoms
    • C07D213/28—Radicals substituted by singly-bound oxygen or sulphur atoms
    • C07D213/30—Oxygen atoms
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
    • C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
    • C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
    • C07D213/60—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • C07D213/61—Halogen atoms or nitro radicals
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
    • C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
    • C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
    • C07D213/60—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • C07D213/62—Oxygen or sulfur atoms
    • C07D213/70—Sulfur atoms
    • C07D213/71—Sulfur atoms to which a second hetero atom is attached
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
    • C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
    • C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
    • C07D213/60—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • C07D213/72—Nitrogen atoms
    • C07D213/76—Nitrogen atoms to which a second hetero atom is attached
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D231/00—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings
    • C07D231/02—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings
    • C07D231/10—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
    • C07D231/14—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D401/00—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom
    • C07D401/02—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings
    • C07D401/04—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings directly linked by a ring-member-to-ring-member bond

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Plural Heterocyclic Compounds (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Nitrogen Condensed Heterocyclic Rings (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Pyridine Compounds (AREA)
  • Compounds Of Unknown Constitution (AREA)

Abstract

Изобретението се отнася до метод за получаване насъединения с формула, в която значенията на W, R2, R3, R5 и R6 са дефинирани в описанието. Съединенията са междинни при синтеза на пестицидно активнисъединения.
BG103751A 1997-03-03 1999-09-21 М...'од за пол"-аван... на м...ждинни 'ъ...дин...ния за 'ин'...з на п...''и-иди BG64277B1 (bg)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US3951697P 1997-03-03 1997-03-03
GB9705316A GB2324086A (en) 1997-03-14 1997-03-14 Phenyl hydrazino Succinonitrile Compounds
PCT/EP1998/001057 WO1998039302A1 (en) 1997-03-03 1998-02-25 Processes for preparing pesticidal intermediates

Publications (2)

Publication Number Publication Date
BG103751A true BG103751A (bg) 2001-05-31
BG64277B1 BG64277B1 (bg) 2004-08-31

Family

ID=26311188

Family Applications (1)

Application Number Title Priority Date Filing Date
BG103751A BG64277B1 (bg) 1997-03-03 1999-09-21 М...'од за пол"-аван... на м...ждинни 'ъ...дин...ния за 'ин'...з на п...''и-иди

Country Status (26)

Country Link
US (2) US6084105A (bg)
EP (1) EP0966445B1 (bg)
JP (1) JP3507509B2 (bg)
KR (1) KR100568921B1 (bg)
CN (2) CN1103759C (bg)
AR (2) AR011912A1 (bg)
AT (1) ATE203521T1 (bg)
AU (1) AU744505B2 (bg)
BG (1) BG64277B1 (bg)
BR (1) BR9807988B1 (bg)
CA (1) CA2281892C (bg)
CZ (1) CZ295189B6 (bg)
DE (1) DE69801214T2 (bg)
DK (1) DK0966445T3 (bg)
EA (1) EA001777B1 (bg)
ES (1) ES2158676T3 (bg)
GR (1) GR3036282T3 (bg)
HU (1) HU228183B1 (bg)
ID (1) ID22679A (bg)
IL (1) IL131660A (bg)
NZ (1) NZ337840A (bg)
PL (1) PL195005B1 (bg)
PT (1) PT966445E (bg)
SK (1) SK283403B6 (bg)
TR (1) TR199902141T2 (bg)
WO (1) WO1998039302A1 (bg)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PT1073627E (pt) * 1998-04-20 2005-03-31 Basf Agro B V Arnhem Nl Waeden Processos para a preparacao de intermediarios pesticidas
FR2789387B1 (fr) * 1999-02-04 2001-09-14 Aventis Cropscience Sa Nouveau procede de preparation d'intermediaires pesticides
DE10142665B4 (de) 2001-08-31 2004-05-06 Aventis Pharma Deutschland Gmbh C2-Disubstituierte Indan-1-one und ihre Derivate
EP1473286B1 (en) * 2002-02-05 2009-11-04 Sumitomo Chemical Company, Limited Process for producing biaryl compound
EP1378506B1 (en) * 2002-07-05 2006-07-26 BASF Agro B.V., Arnhem (NL), Wädenswil-Branch Process for the preparation of phenyl pyrazole compounds
JP5540067B2 (ja) * 2009-03-16 2014-07-02 ビーエーエスエフ ソシエタス・ヨーロピア ピラゾール誘導体の調製方法
US9212150B2 (en) 2013-03-13 2015-12-15 Dow Agrosciences Llc Process for the preparation of certain triaryl pesticide intermediates
US9108932B2 (en) 2013-03-13 2015-08-18 Dow Agrosciences Llc Preparation of haloalkoxyarylhydrazines and intermediates therefrom
CN103396366B (zh) * 2013-08-06 2015-12-02 盐城工学院 5-氨基-3-氰基-1-(2，6-二氯-4-三氟甲基苯基)吡唑的生产方法
EP3057425A4 (en) 2013-10-17 2017-08-02 Dow AgroSciences LLC Processes for the preparation of pesticidal compounds
CN106117145A (zh) * 2016-07-12 2016-11-16 潍坊鑫诺化工有限公司 5‑氨基‑1‑（2,6‑二氯‑4‑三氟甲基苯基）‑3‑氰基吡唑的制备方法
US10233155B2 (en) 2016-12-29 2019-03-19 Dow Agrosciences Llc Processes for the preparation of pesticide compounds
CN108707113A (zh) * 2018-06-28 2018-10-26 长沙麓兴生物科技有限公司 一种n-烷基-氰基吡唑的合成方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8713768D0 (en) * 1987-06-12 1987-07-15 May & Baker Ltd Compositions of matter
GB8531485D0 (en) * 1985-12-20 1986-02-05 May & Baker Ltd Compositions of matter
DE3612940A1 (de) * 1986-04-17 1987-10-22 Bayer Ag Verfahren zur herstellung von 1-aryl-5-aminopyrazolen
DE3612939A1 (de) * 1986-04-17 1987-10-22 Bayer Ag Verfahren zur herstellung von 1-aryl-5-amino-pyrazolen
WO1992013451A1 (en) * 1991-02-11 1992-08-20 Schering Agrochemicals Limited Imidazole pesticides
GB9120641D0 (en) * 1991-09-27 1991-11-06 Ici Plc Heterocyclic compounds
GB9604691D0 (en) 1996-03-05 1996-05-01 Rhone Poulenc Agriculture New processes for preparing pesticidal intermediates
US5907041A (en) 1997-03-12 1999-05-25 Rhone-Poulenc Inc. Process for preparing pyrazole derivatives

Also Published As

Publication number Publication date
DE69801214D1 (de) 2001-08-30
AU744505B2 (en) 2002-02-28
DE69801214T2 (de) 2001-11-08
WO1998039302A1 (en) 1998-09-11
CZ295189B6 (cs) 2005-06-15
ID22679A (id) 1999-12-09
PL195005B1 (pl) 2007-07-31
HUP0002159A3 (en) 2002-02-28
EP0966445B1 (en) 2001-07-25
US6084105A (en) 2000-07-04
NZ337840A (en) 2001-06-29
CN1184207C (zh) 2005-01-12
HUP0002159A2 (hu) 2000-10-28
IL131660A (en) 2005-08-31
PL335443A1 (en) 2000-04-25
BR9807988A (pt) 2000-03-08
HK1056360A1 (en) 2004-02-13
KR20000075933A (ko) 2000-12-26
DK0966445T3 (da) 2001-09-24
CA2281892C (en) 2007-05-22
HU228183B1 (en) 2013-01-28
CN1103759C (zh) 2003-03-26
SK119199A3 (en) 2000-03-13
TR199902141T2 (xx) 2000-04-21
AR061492A2 (es) 2008-09-03
GR3036282T3 (en) 2001-10-31
CA2281892A1 (en) 1998-09-11
KR100568921B1 (ko) 2006-04-07
CN1249747A (zh) 2000-04-05
EA001777B1 (ru) 2001-08-27
IL131660A0 (en) 2001-01-28
US6258973B1 (en) 2001-07-10
SK283403B6 (sk) 2003-07-01
HK1027102A1 (en) 2001-01-05
ES2158676T3 (es) 2001-09-01
CN1421439A (zh) 2003-06-04
CZ310399A3 (cs) 2000-01-12
ATE203521T1 (de) 2001-08-15
PT966445E (pt) 2001-11-30
EA199900790A1 (ru) 2000-02-28
JP2001513792A (ja) 2001-09-04
EP0966445A1 (en) 1999-12-29
AR011912A1 (es) 2000-09-13
BG64277B1 (bg) 2004-08-31
BR9807988B1 (pt) 2013-06-18
AU6823298A (en) 1998-09-22
JP3507509B2 (ja) 2004-03-15

Similar Documents

Publication Publication Date Title
BG103485A (bg) Кетобензамиди като инхибитори на калпаина
AP1852A (en) '3-Azabicyclo{3.1.0] hexane derivatives as opiate receptors ligands.
MX9709240A (es) Fenilpiridazinonas.
EA200100412A1 (ru) Замещенные 3-цианохинолины в качестве ингибиторов протеинтирозинкиназ
IL130260A0 (en) 3-thiocarbamoylpyrazole derivatives as pesticides
BR9909844A (pt) Processo para sintetizar um composto, e, composto.
DK1200418T3 (da) Nematodicide trifluorbutener
TR200001012T2 (tr) Yeni ariloksi-alkil-dialkilaminler.
DK0468012T3 (da) 17beta-substituerede 4-aza-5alfa-androstan-3-on-derivater og fremgangsmåde til fremstilling deraf
BG103751A (bg) Метод за получаване на междинни съединения за синтез на пестициди
MX9709398A (es) N-aril-1,2,4-triazolin-5-onas.
BG105710A (bg) 5-нт1 антагонисти за антидепресантно лечение
FI970448L (fi) N-substituoituja 3-atsobisyklo(3.2.0)heptaanijohdannaisia,jotka ovat käyttökelpoisia neuroleptisina aineina
ES2194102T3 (es) Nuevas n-(2,4-dioxo-2,3,4,5-tetrahidro-1h-1,5-benzodiazepin-3-il)-3-amidas.
BG104232A (bg) Заместени 1,2,3,4,5,6-хексахидро-2,6-метано-3-бензазоцин- 10-оли, метод за тяхното получаване и приложението им като лекарствени средства
BG105766A (bg) Нов метод за получаване на пестицидни междинни продукти
BG106002A (bg) Метод за получаване на пестицидни междинни съединения
CA2239282A1 (en) Fused isoindolones as inhibitors of protein kinase c
ES2185196T3 (es) Un procedimiento para la preparacion de tetraazamacrociclos.
ID27440A (id) Proses untuk menyiapkan penengah-penengah
TR200001122T2 (tr) Farmasötikler olarak bifenil türevleri.
ATE213236T1 (de) Substituierte benzyloxyimino-verbindungen
ID21920A (id) 4-6-fluoro-(1h)-indol-3-il-1,2,3,6-tetrahidropirin tersubstitusi untuk pengobatan gangguan cns
BG105247A (bg) N-заместени азабициклохептанови производни, тяхното получаване и използване
DK0971907T3 (da) Fremgangsmåde til fremstilling af 1,3-disubstituerede 2-nitroguanidiner