- 作者: 許志宏 ; 閻靜芬 ; 黃嘉文
- 作者服務機構: 中山大學海洋資源系
- 中文摘要: Regioselective cycloaddition of (dimethylvinylidene) carbene (1) into aryl alkenes in the presence of other olefins is reported. The reaction is presumably controlled by the phenyl group, which forms an aromatic .pi.-complex with the carbene C-3 orbital, followed by the selective addition of 1 to the closest phenyl-substituted double bond. Also, this selectivity is assumed to be attributed to delocalization of aromatic .pi. electrons which increases the electron density of the conjugated carbon-carbon double bond, thus leading to the facile addition of vinylidenecarbene.
- 英文摘要: --
- 中文關鍵字: Regioselectivity; Vinylidenecarbene; Aryl Alkene; Aromaticity; .Pi.-Complex; Cycloaddition; Delocalization
- 英文關鍵字: 位向選擇性;碳烯乙烯;芳基烯類;芳香性;.pi.-錯化合物(配位化合物);環加成反應;非定域化