Process for conversion of certain trans 3,4-methano-pyrrolidine derivatives into their corresponding cis isomers, a novel unsaturated intermediate in the process and derivatives thereof, a process for preparing the novel intermediate and derivatives thereof, pollen-suppressing compositions and a method of producing F1hybrid seed
申请人:SHELL INTERNATIONALE RESEARCH
MAATSCHAPPIJ B.V.
公开号:EP0031176A2
公开(公告)日:1981-07-01
A process for the conversion of the transisomer of an acid whose carbon skeleton includes the unit
or a salt, ester, or salt of an ester thereof, into the cis isomer of such a compound which comprises converting the trans isomer into an acid whose carbon skeleton includes the unit
or a salt thereof, and subsequently hydrogenating said compound and, in the event of an ester or salt thereof being required converting the resulting free acid or salt thereof into the required ester or salt thereof. The compound 2-carboxy-3-aza-bicyclo 3.1.0 hex-2-ene or a salt and/or amide, alkylamide, hydrazide or alkylhydrazide thereof may be used as a pollen suppressant.
一种碳骨架包括以下单元的酸的反式体的转化工艺
或其盐、酯或酯的盐,转化为该化合物的顺式异构体的工艺,包括将反式异构体转化为碳骨架包含该单元的酸
或其盐,然后将所述化合物氢化,如果需要酯或其盐,则将所得游离酸或其盐转化为所需的酯或其盐。化合物 2-羧基-3-氮杂双环 3.1.0-己-2-烯或其盐和/或酰胺、烷基酰胺、酰肼或烷基酰肼可用作花粉抑制剂。