The Stereochemical Course of the Photochemical Berson-Willcott Rearrangement of<i>exo</i>-1-Methoxycarbonylmethyl-3-<i>t</i>-butyl-1a,7b-dihydro-1<i>H</i>-cyclopropa[<i>a</i>]naphthalene to 7-Methoxy-carbonylmethyl-5-<i>t</i>-butyl-7<i>H</i>-benzocycloheptene
作者:Masahiko Kato、Keizo Takatoku、Satoru Ito、Mitsuru Funakura、Toshio Miwa
DOI:10.1246/bcsj.53.3648
日期:1980.12
l-3-t-butyl-1a,7b-dihydro-1H-cyclopropa[a]naphthalene gave (7S)-5-t-butyl-7-methoxycarbonylmethyl-7H-benzocycloheptene by a 1,5-sigmatropic shift, proving the rearrangement to proceed with the inversion of the configuration of the migrating center.
(1S)-exo-1-甲氧羰基甲基-3-t-丁基-1a,7b-二氢-1H-环丙[a]萘的光解得到(7S)-5-叔丁基-7-甲氧羰基甲基-7H-苯并环庚烯通过 1,5-sigmatropic 位移,证明重排继续进行迁移中心构型的反转。