STUDIES　ON　THE　REACTIVITY　OF　CYCLOAROMATIZATION　REACTION　VIA　a－OXO　KETENE　DITHIOACETALS

作     者：Qun LIU Zhi Ling WANG Shu Jia ZHANG Zhi Yun YANG(Department of Chemistry, Northeast Normal University, Changchun, 130024) 

出 版 物：《Chinese Chemical Letters》 (中国化学快报（英文版）)

年 卷 期：1994年第5卷第7期

页      面：577-580页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 070303[理学-有机化学] 0703[理学-化学] 

主　　题：OXO KETENE REACTION CYCLOAROMATIZATION DITHIOACETALS VIA 

摘      要：The dihydric dithioketenes 3a-c obtained by 1,2-addition of methallyl Grignard reagent to bis(alkylthio)methylidene derivative ofdimedone 2a-c wewr converted to the cycloaromatization product 4 assisted by boron trifluoride *** this reaction was performed in methanol,the substitution-cycloaroatization product 5 was obtained as by- product from *** this eycloaromatization reaction,,the reactivity order dimethylthio1, 3 - propylenedithio1, 2- ethylenedithio carbon cation was established by the yields from 3a-c *** intramolecular a1,a1reaction pattern was developed by experiment.