申请人:Kapila Debjani
公开号:US20050137428A1
公开(公告)日:2005-06-23
A process for forming a cycloalkylidene bisphenol comprises: reacting a cycloalkanone compound of formula:
where [A] is a substituted or an unsubstituted aromatic group, R
1
-R
4
independently represent a hydrogen or a C
1
-C
12
hydrocarbyl group; and “a” and “b” are integers independently having values from 0-3; with an aromatic hydroxy compound of formula [A]-OH, where [A] is as previously described; at a mole ratio of greater than or equal to about 20, in the presence of a sulfonic acid type ion exchange resin catalyst crosslinked with greater than or equal to about 8 weight percent of divinylbenzene, and a promoter selected from the group consisting of a mercaptan compound and a resorcinol compound; to form a cycloalkylidene bisphenol of formula:
where [A], R
1
-R
4
, “a” and “b” are as previously described. Moreover, any acid catalyst can be used with a resorcinol promoter.
形成环烷基亚苯酚的方法包括:将具有下列结构的环烷酮化合物与下列结构的芳香羟基化合物在摩尔比大于或等于约20的条件下反应,其中[A]是取代或未取代的芳香基团,R1-R4独立地代表氢或碳链长度为C1-C12的烃基团;“a”和“b”是整数,其值独立地取自0-3;在存在含有大于或等于约8重量百分比的二乙烯苯交联的磺酸型离子交换树脂催化剂和从巯基化合物和间苯二酚化合物中选择的促进剂组成的群体中,形成下列结构的环烷基亚苯酚:其中[A],R1-R4,“a”和“b”如前所述。此外,任何酸催化剂均可与间苯二酚促进剂一起使用。