作者:Terrence J. Connolly、Tony Durst
DOI:10.1016/s0040-4020(97)10066-7
日期:1997.11
The first synthesis of bicyclic ortho-quinodimethanes from tricyclic sulfone precursors has been achieved. The required sulfones, 3,4,5,6-tetrahydro-1H-cyclohex[cd]benzothiophene-2,2-dioxide and 1,3,4,5,6,7-hexahydrocyclohept[cd]benzothiophene-2,2-dioxide, were prepared from α-tetralone and benzosuberone utilizing a ring closure proceeding through a sulfonium salt intermediate. The same strategy failed
已经实现了从三环砜前体的第一合成双环邻-喹二甲烷。所需的砜,3,4,5,6-四氢-1H-环己[cd]苯并噻吩-2,2-二氧化物和1,3,4,5,6,7-六氢环庚[cd]苯并噻吩-2,2-使用闭环通过α盐中间体,由α-四氢萘酮和苯并亚砜制备二氧化碳。尝试制备茚满系列的三环砜时,相同的策略失败了。当比较三环醚化合物的能力和易形成性时,还发现了其他对比反应性。这些结果表明,后面的环形系统应变很大。