CIDNP Study and Ab-Initio Calculations of Rigid Vinylcyclopropane Systems: Evidence For Delocalized “Ring-Closed” Radical Cations
作者:Heinz D. Roth、Hengxin Weng、Torsten Herbertz
DOI:10.1016/s0040-4020(97)00347-5
日期:1997.7
The radical cations of three terpenes, sabinene, 1, and α-, 2, and β-thujene, 3, containing vinylcyclopropane functions held rigidly in either an anti- or syn-orientation, have been elucidated by CIDNP studies. The structures assigned to these species are discussed in view of their reactivities and compared with three simplified radical cations, 2-methylenebicyclo[3.1.0]hexane, 4, bicyclo[3.1.0]hex-2-ene
通过CIDNP研究已经阐明了三个萜烯的sa阳离子,即sa烯1和α-,2和β-th烯3,它们在反方向或顺方向上都牢固地具有乙烯基环丙烷官能团。鉴于它们的反应性,讨论了分配给这些物质的结构,并与三个简化的自由基阳离子(2-亚甲基双环[3.1.0]己烷,4,双环[3.1.0]己-2-烯,5和5-)进行了比较。甲基双环[3.1.0] hex-2-ene,6,通过从头算分子轨道方法计算。©1997爱思唯尔科学有限公司。