Preparation of Silole Derivatives and Their Reactions with Dimethyl Acetylenedicarboxylate
作者:Daiyo Terunuma、Masashi Hirose、Yuki Motoyama、Kayo Kumano
DOI:10.1246/bcsj.66.2682
日期:1993.9
Reaction of silole derivatives such as 1,1,3,4-tetramethylsilole (1)1) and 2,3-dimethyl-5-silaspiro[4.4]nona-1,3-diene (2) with dimethyl acetylenedicarboxylate (DMADC) were investigated. It was found that the reactions of 1 and 2 with DMADC in toluene gave 7-membered ring compounds; trimethyl 7-methoxy-3,3,3′,4′-tetramethyl-6-oxa-3-sila-1,2-benzocyclohepta-1,4-diene-4,5,6′-tricarboxylate and trimethyl
硅酮衍生物如 1,1,3,4-四甲基硅酮 (1)1) 和 2,3-二甲基-5-硅螺[4.4]nona-1,3-二烯 (2) 与乙炔二甲酸二甲酯 (DMADC) 的反应为调查。发现1和2与DMADC在甲苯中反应得到7元环化合物;7-甲氧基-3,3,3',4'-四甲基-6-oxa-3-sila-1,2-benzocyclohepta-1,4-diene-4,5,6'-tricarboxylate 三甲酯和 5-甲氧基三甲酯- 8,9-二甲基螺[5H-4,1-benzoxasilepin-1,1'-silacyclopentane]-2,3,6-tricarboxylate,分别。