作者:Ichiro Moritani、Shun-Ichi Murahashi、Kunio Yoshinaga、Hidetomo Ashitaka
DOI:10.1246/bcsj.40.1506
日期:1967.6
The photolysis of 5-diazo-10, 11-dihydro-5H-dibenzo[a, d]cycloheptene in cis-2-butene gave 5, 5′-bi(10, 11-dihydro-5H-dibenzo[a, d]cycloheptenyl) (81%), 10, 11-dihydro-5H-dibenzo[a, d]-cycloheptene (6%), and 10, 11-dihydro-5H-dibenzo[a, d]cyclohepten-5-one (6%). The ESR spectrum established the triplet ground state of this carbene. The absorption spectrum of this carbene was obtained successfully.
5-重氮-10, 11-二氢-5H-二苯并[a, d]环庚烯在顺-2-丁烯中的光解得到5, 5'-双(10, 11-二氢-5H-二苯并[a, d]环庚烯基) (81%)、10, 11-二氢-5H-二苯并[a, d]-环庚烯 (6%) 和 10, 11-二氢-5H-二苯并[a, d]环庚烯-5-酮 (6 %)。ESR 光谱确定了这种卡宾的三线态基态。成功获得了该卡宾的吸收光谱。这些光谱类似于二苯基亚甲基的光谱。5, 5-Dibromo-10, 11-dihydro-5H-dibenzo[a, d] 环庚烯是通过在 -30°C 下对重氮化合物进行溴化来制备的。该二溴化物与烷基锂在烯烃存在下反应得到 5, 5'-双(10, 11-二氢-5H-二苯并[a, d]环庚烯基)和5-烷基-10, 11-二氢-5H-二苯并[a, d]cyclohepten-5-ol。没有获得环丙烷衍生物。