DIMERIZATION OF 3-METHYL-BUTENENITRILE,申请号JP19800125042-传众专利搜索

DIMERIZATION OF 3-METHYL-BUTENENITRILE

申请公布号：JPS5748955(A)

申请号：JP19800125042

申请日期：1980.09.09

申请公布日期：1982.03.20

申请人：

SHIZUOKA DAIGAKUCHIYOU

发明人：TAKABE KUNIHIKO;OOKAWA MASARU;SATOU TOSHIO;TAN.JIYA.HIEN;KATAGIRI TAKAO

分类号：C07B61/00;B01J31/00;B01J31/02;C07C67/00;C07C253/00;C07C255/09;C07C255/46

主分类号：C07B61/00

摘要：PURPOSE:To obtain a cyclogeranyl derivative useful in the field of organic synthesis in high yield selectively, by dimerizing 3-methyl-3-butenenitrile using a specific solvent, e.g., an ether, etc. and a basic catalyst, e.g., an alkali metal amide, etc. CONSTITUTION:3-Methyl-3-butenenitrile shown by the formula I is dimerized in a solvent of an ether, hydrocarbon and a tertiary amine in the presence of analkali metal amide obtained by preparing from a secondary amine (e.g., diethylamine, etc.) and an alkali metal or an alkyl alkali metal (e.g., lithium naphthalene, etc.) as a catalyst, to give a compound shown by the formula II, a chain dimer, especially, 3,5,5-trimethyl-1-amino-4-cyanocyclohexa-1,3-diene (A), a cyclic dimer, or 4- cyanoisophorone, an hydrolyzate of the compound A. USE:A raw material for synthesizing drugs, e.g., vitamin A derivative, carotenoid, etc.