| 1. | Ethyl vanillin was synthesized by the phase - transfer catalysis cteab and o - ethoxyphenol , which was prepared from pyroeatehol with an overall yield of 55 . 2 % , and the factors in the reaction , such as phase - transfer catalysis and temperature , were discussed
摘要以邻苯二酚为原料，首先合成中间体邻乙氧基苯酚，然后以十六烷基三乙基溴化铵为相转移催化剂合成了乙基香兰素，考察了相转移催化剂的选择及反应温度，最后收率为55 . 2 % 。 |
