申请人:WHITBY RESEARCH, Inc.
公开号:EP0582065A1
公开(公告)日:1994-02-09
This invention provides a process for the conversion of a reactant into a reaction product in the presence of an acid catalyst which comprises contacting said reactant with an acid catalyst comprising a compound represented by the general formula
wherein X may represent sulfur, oxygen or nitrogen; a and b may be 0 or 1, c may be 0,1 or 2, except that when X is oxygen, a, b and c are O, when X is nitrogen c is 0 and only one of a or b is 1, and when X is sulfur a and b are 0; A is a branched or a straight chain, divalent aliphatic radical having from 0 to 2 double bonds; R' is selected from the group consisting of H, a lower alkyl group having from 1 to 4 carbon atoms, phenyl, lower alkyl or halogen substituted phenyl, acetamido, halogen, piperidinyl, lower alkyl or halogen substituted piperidinyl, carbalkoxy, carboxamide, and alkanoyl; and R is hydrogen or a lower alkyl group having from 1 to 4 carbon atoms,
wherein R'' is H or halogen, and salts thereof, and Z is selected from the group consisting of anions of strong acids.
本发明提供了一种在酸催化剂存在下将反应物转化为反应产物的工艺,该工艺包括将所述反应物与酸催化剂接触,酸催化剂由通式所代表的化合物组成。
其中 X 可以代表硫、氧或氮;a 和 b 可以是 0 或 1,c 可以是 0、1 或 2,但当 X 是氧时,a、b 和 c 是 O,当 X 是氮时,c 是 0,a 或 b 中只有一个是 1,当 X 是硫时,a 和 b 是 0;A 是支链或直链二价脂族基,具有 0 至 2 个双键;R'选自由 H、具有 1 至 4 个碳原子的低级烷基、苯基、低级烷基或卤素取代的苯基、乙酰氨基、卤素、哌啶基、低级烷基或卤素取代的哌啶基、碳烷氧基、羧酰胺和烷酰基组成的组;以及 R 为氢或具有 1 至 4 个碳原子的低级烷基、
其中 R''是氢或卤素,以及它们的盐,Z 选自强酸阴离子组成的组。