Method for Producing Asymmetric Conjugated Diyne Compound and Method for Producing Z,Z-Conjugated Diene Compound Using the Same
申请人:Shin-Etsu Chemical Co., Ltd.
公开号:US20160229829A1
公开(公告)日:2016-08-11
Provided are a method for efficiently producing an asymmetric conjugated diyne from an inexpensive and safe alternative compound to hydroxylamine hydrochloride and a method for producing a Z,Z-conjugated diene compound from the asymmetric conjugated diyne compound thus obtained. More specifically, provided is a method for producing an asymmetric conjugated diyne compound comprising a step of subjecting a terminal alkyne compound (1): HC≡C—Z
1
—Y
1
to a coupling reaction with an alkynyl halide (2) Y
2
—Z
2
—C≡C—X by using sodium borohydride in water and an organic solvent in the presence of a copper catalyst and a base to obtain the asymmetric conjugated diyne compound (3): Y
2
—Z
2
—C≡C—C≡C—Z
1
—Y
1
. In addition, provided is a method for producing a Z,Z-conjugated diene compound by reducing the resulting asymmetric conjugated diyne compound, or the like.
METHOD FOR PRODUCING ASYMMETRIC CONJUGATED DIYNE COMPOUND AND METHOD FOR PRODUCING Z,Z-CONJUGATED DIENE COMPOUND USING THE SAME
申请人:Shin-Etsu Chemical Co., Ltd.
公开号:EP3053906A1
公开(公告)日:2016-08-10
Provided are a method for efficiently producing an asymmetric conjugated diyne from an inexpensive and safe alternative compound to hydroxylamine hydrochloride and a method for producing a Z,Z-conjugated diene compound from the asymmetric conjugated diyne compound thus obtained. More specifically, provided is a method for producing an asymmetric conjugated diyne compound comprising a step of subjecting a terminal alkyne compound (1): HC≡C-Z1-Y1 to a coupling reaction with an alkynyl halide (2): Y2-Z2-C≡C-X by using sodium borohydride in water and an organic solvent in the presence of a copper catalyst and a base to obtain the asymmetric conjugated diyne compound (3): Y2-Z2-C≡C-C≡C-Z1-Y1. In addition, provided is a method for producing a Z,Z-conjugated diene compound by reducing the resulting asymmetric conjugated diyne compound, or the like.
Karpinska; Lewandowska; Grodner, Polish Journal of Chemistry, 2004, vol. 78, # 7, p. 937 - 942
作者:Karpinska、Lewandowska、Grodner
DOI:——
日期:——
METHOD OF PRODUCING ALIPHATIC ALDEHYDE COMPOUND HAVING TERMINAL CONJUGATED DIENE STRUCTURE AND INTERMEDIATE THEREFOR
申请人:SHIN-ETSU CHEMICAL CO., LTD.
公开号:US20170297987A1
公开(公告)日:2017-10-19
Provided are a method for producing a terminal conjugated dienal compound without an oxidation reaction and a terminal hydroxyacetal compound useful as an intermediate in the method. More specifically, provided are a method for producing an (E)-dienal compound comprising the steps of: a metalation reaction of an alkynal acetal compound (1) to obtain an organic metal compound (2), an addition reaction of (2) to ethylene oxide to obtain a hydroxyalkynal acetal compound (3), a reduction reaction of (3) to obtain an (E)-hydroxyalkenal acetal compound (4), a functional group conversion reaction of (4) to obtain an (E)-alkenal acetal compound (5) having a leaving group X, an elimination reaction of (5) to obtain an (E)-dienal acetal compound (6), and a hydrolysis reaction of (6) to obtain the (E)-dienal compound (7); and others.