申请人:Appleton Papers Inc.
公开号:US20020002311A1
公开(公告)日:2002-01-03
The present invention is a novel process, with or without solvent, for manufacture of compounds of the formula
1
wherein P is selected from phenyl and naphthyl;
wherein R
1
and R
2
and R
3
are each independently selected from hydrogen, alkyl, alkoxy, aryl, aralkyl, aralkoxy, halogen, alkoxyalkoxy, and aralkoxyalkoxy; wherein R
5
is selected from substituted or unsubstituted phenyl, and substituted or unsubstituted naphthyl, the substituents being each independently selected from alkyl (C
1
-C
8
), alkoxy (C
1
-C
8
), aroxy, aralkoxy (C
1
-C
8
) and halogen. The process comprises reacting substituted phenols or naphthols of the formula
2
with ethylene carbonate in the presence of a first catalyst selected from metal halide, quarternary ammonium halide and quarternary phosphonium halide thereby forming an intermediate of the formula
3
then reacting the intermediate with a first compound selected from alkyl or aralkylhalide, alkyl or aralkyl sulfate, and alkyl or aralkyl sulfonate together with a metal hydroxide in the presence of a second catalyst, the second catalyst selected from quarternary ammonium salt or quarternary phosphonium salt.
本发明是一种新型工艺,可有溶剂或无溶剂,用于制造式1的化合物,其中P选择自苯基和萘基;其中R1、R2和R3各自独立地选择自氢、烷基、烷氧基、芳基、芳基烷基、芳基烷氧基、卤素、烷氧基烷氧基和芳基烷氧基烷氧基;其中R5选择自取代或未取代的苯基和取代或未取代的萘基,取代基各自独立地选择自烷基(C1-C8)、烷氧基(C1-C8)、芳氧基、芳基烷氧基(C1-C8)和卤素。该工艺包括在第一催化剂的存在下,将式2的取代苯酚或萘酚与碳酸乙烯酯反应,从而形成式3的中间体,然后在第二催化剂的存在下,将中间体与选择自烷基或芳基烷基卤化物、烷基或芳基烷基硫酸盐和烷基或芳基烷基磺酸盐的第一化合物以及金属羟化物反应。第二催化剂选择自季铵盐或季磷盐。