| 释义 |
- 1
The catalysis of big pore strong acid resin for 1,4-butanediol dehydration to tetrahydrofuran is investigated. 考察了大孔强酸性树脂对1，4 丁二醇脱水制四氢呋喃的催化作用。 - 2
Water, organic compounds such as phenylcarbinol or 1,4-butanediol and other additives are beneficial to this reaction. 水以及己二醇、苯甲醇和1，4-丁二醇等一些有机物添加剂对环己烯产率和选择性的提高也有积极的作用。 - 3
Bis(p-hydroxybenzonic acid butanediolate)(BBHB)as mesogenic unit was prepared with methyl p-hydroxybenzoate, 1,4-butanediol and catalyst by melting transesterification. 以对羟基苯甲酸甲酯、1，4丁二醇为主要原料，经熔融酯交换合成介晶基元双-对羟基苯甲酸丁二醇酯（BBHB）；
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