Force field-SCF calculations on cyclopropene intermediates in carbene rearrangements. Comparison with experiment
作者:Curt Wentrup、Claude Mayor、Jürgen Becker、Hans Jörg Lindner
DOI:10.1016/s0040-4020(01)96400-2
日期:1985.1
derivatives have been calculated with a combined force field-SCF program. The bicycloheptatrienes are stabilized relative to the isomeric arylcarbenes by benzannelation, and destabilized by loss of aromaticity and/or increased strain. 1-Naphthylcarbene, 2-naphthylcarbene, 9-phenanthrylcarbene and 9-anthrylcarbene were generated by gas-phase pyrolysis of the corresponding arene aldehyde tosylhydrazone sodium
苯并环丙烯,环丙烷[ b ]萘,双环[4.1.0]庚-2,4,7-三烯和苯甲酰化衍生物的形成热和几何形状已通过组合力场-SCF程序进行了计算。双环庚烯相对于异构芳基卡宾通过苯甲酰化是稳定的,并且由于失去芳香性和/或增加的应变而不稳定。1-Naphthylcarbene,2- naphthylcarbene,分别用对应的芳烃醛甲苯磺酰腙的钠盐,重氮甲烷,或5- aryltetrazoles的气相热解产生的9- phenanthrylcarbene和9- anthrylcarbene,并重新安排以cyclobuta [ DE ]萘(21),环丁酮[ jk ]菲(33)和环丁酮[ de分别为]蒽(38)。10,11-二氢二苯并[ ad ]环庚基-5-亚烷基(15),类似地由5-重氮-10,11-二氢-5H-二苯并[ ad ]环庚烯(39)生成,重排为5a,9b-二氢-5 H-苯并[3,4]环丁[1