CAS: 40497-11-8; Ethyl 2,3-Dicyanopropanoate

相似化合物

1619-58-5 1572-99-2 13121-23-8

上下游产品

CAS号107-16-4 羟基乙腈 | CAS号105-56-6 氰乙酸乙酯 | CAS号773837-37-9 sodium cyanide | CAS号7085-85-0 氰基丙烯酸乙酯 | CAS号50-00-0 甲醛 | CAS号151-50-8 氰化钾 | CAS号460-19-5 氰 | CAS号18852-51-2 sodium salt of ... | CAS号535-11-5 2-溴丙酸乙酯 | CAS号64-67-5 硫酸二乙酯 | CAS号120068-79-3 5-氨基-3-氰基-1-(2,... | CAS号110-15-6 琥珀酸； 丁二酸

氰乙酸乙酯置于paraformaldehyde体系中,用 乙醇,水 作为反应溶剂,以77%的收率获得产物2,3-二氰基丙酸乙酯
参考文献:Processes For Preparing Pesticidal Intermediates
标题:Processes For Preparing Pesticidal Intermediates
摘要:一种制备化合物的方法,其化学式为##str1## 其中r为c.Sub.1-C.Sub.18烷基,方法是通过将化学式为ro.Sub.2C-Ch.Sub.2Cn (II)的化合物与氰盐和甲醛或甲醛源反应.化合物(I)的中间体对于杀虫活性化合物是有用的.

专利信息

专利号:EP-1264823-A1
优先权日:2001-06-08
标 题:Process for the preparation of 2,3-dicyanopropionates
发明人：SCHUELE GUNTER
权利人:NOVARTIS AG
摘要:The invention relates to a process for the preparation of a compoundnof formulan nwherein R represents branched or unbranchedn(C 1 -C 6 -alkoxy) 1-10 -C 2 -C 6 -alkyl,nC 3 -C 8 -cycloalkyl, allyl, propargyl, phenyl ornphenyl-C 1 -C 6 -alkyl; or a salt thereof;nwhich comprises the reaction of a cyanoacetate of formulan nwherein R is defined as in formula I, with formaldehyde or a sourcenthereof in the presence of a cyanide salt. The compounds of formula Inare useful as intermediates in the synthesis of pesticidally activencompounds.

专利号:US-8507693-B2
优先权日:2010-03-03
标 题:Process for synthesis of fipronil
发明人：GHARDA KEKI HORMUSJI
权利人:GHARDA KEKI HORMUSJI
摘要:The present disclosure relates to a process for trifluoromethylsulfinyl pyrazole compound of formula I, n nfrom a compound of formula III, wherein, R, R 1 and R 2 represent a group containing halogen group respectively and R 3 represents a perhaloalkyl.

专利号:WO-2011107998-A1
优先权日:2010-03-03
标题 :Process for synthesis of fipronil

专利号:EP-2542531-B1
优先权日:2010-03-03
标 题:Process for synthesis of fipronil

专利号:EP-2542531-A1
优先权日:2010-03-03
标 题 :Process for synthesis of fipronil

专利号:CN-109705101-A
优先权日:2018-12-29
标 题 :A kind of pyrazole triazole sulfonamide compound and its solvothermal synthesis method and application