申请人:Rhone Poulenc S.A.
公开号:US04331814A1
公开(公告)日:1982-05-25
Sulphones useful for preparing polyenes have the formula: ##STR1## where the sulphonyl group replaces a hydrogen atom on carbon atom (a) or (b), R represents alkyl, aralkyl or aryl, optionally substituted, A and Q represent an optionally substituted hydrocarbon of 5n+1 carbon atoms (n is 1-5), methyl, optionally substituted by halogen, sulphide or sulphone, CH.sub.2 OH (or an ether or ester thereof), CHO (optionally protected), COOH (or an acid chloride, ester or nitrile thereof), with the proviso that when A represents a 2-(2,6,6-trimethylcyclohex-1-enyl) ethenyl radical, Q cannot represent --COOH or an ester thereof.
砜类化合物用于制备聚烯烃,其化学式为:##STR1## 其中砜基取代了碳原子(a)或(b)上的氢原子,R代表烷基、芳基烷基或芳基,可选择性取代,A和Q代表5n+1个碳原子(n为1-5)的可选择性取代的碳氢化合物,甲基,可选择性取代的卤素、硫化物或砜基,CH.sub.2 OH(或其醚或酯),CHO(可选择性保护),COOH(或其酸氯化物、酯或腈),但当A代表2-(2,6,6-三甲基环己-1-烯基) 乙烯基基团时,Q不能代表--COOH或其酯。