公开(公告)号：JPH11130784A

公开(公告)日：1999-05-18

申请号：JP29436797

申请日：1997-10-27

Applicant: SAGAMI CHEM RES

Inventor： FUCHIGAMI TAKAMASA ,  SAITO YASUKO ,  HIROZAWA TOMOTARI

IPC: B01J27/12 ,  B01J31/02 ,  C07B61/00 ,  C07C315/04 ,  C07C317/18 ,  C07F7/18

Abstract: PROBLEM TO BE SOLVED: To provide a simple process for the production of a β-hydroxysulfoxide useful as a synthetic intermediate for pharmaceuticals and amino acids. SOLUTION: The objective β-hydroxysulfoxide derivative expressed by the general formula R (S=O)CH2 -CH(OSiR R R )-R (R , R , R and R are each independently an alkyl or an aromatic group; R is a (substituted)aromatic group or vinyl group) and/or β-hydroxysulfoxide expressed by the general formula R (S=O)CH2 -CH(OH)-R can be produced by reacting an aldehyde expressed by the general formula RHC=O with a sulfinylmethylsilane expressed by the general formula R (S=O)CH2 -SiR R R in the presence of fluorine ion.

公开(公告)号：JPH08295725A

公开(公告)日：1996-11-12

申请号：JP10286995

申请日：1995-04-27

Applicant: SAGAMI CHEM RES

Inventor： FUCHIGAMI TAKAMASA ,  YAMAMOTO TOSHINORI ,  SAITO YASUKO ,  NAGASE YUTAKA

IPC: C08G61/02 ,  C08G61/00

Abstract: PURPOSE: To provide a catalyst used in the production of a cycloolefin/acetylene copolymer useful as a material for a gas separation membrane such as an oxygen enriching membrane by using a specified tungsten complex as an effective component. CONSTITUTION: This catalyst used for the copolymerization of a cycloolefin with an acetylene comprises a tungsten complex represented by the formula (wherein A is an alkali metal cation, an ammonium cation or a phosphonium cation) or a combination thereof with a hydrosilane. This catalyst is stable, highly active and easily handleable. By using this catalyst, a copolymer having a composition corresponding to the composition ratio between the charged comonomers can be synthesized even in the copolymerization of a cycloolefin with an acetylene by which the production of a copolymer of a controlled compositionn is conventionally impossible, and a polymer of an acetylene can be used in the copolymerization. The synthesized cycloolefin/acetylene copolymer has excellent properties as a material for a gas separation membrane such as an oxygen enriching membrane.