作者:Stacey A. Lomenzo、Amy L. Bradley、Naijue Zhu、Cheryl L. Klein、Mark L. Trudell
DOI:10.1002/jhet.5570340408
日期:1997.7
A new synthetic approach for the regiospecific alkylation of the 6-position of the tropane ring system has been developed. Alkylation, desulfonylation and deprotection of tropanes 5 and 12 furnished a series of 6-endo-alkyltropan-2-one derivatives 8a-e, 15a-e and 16a-e (R = Me, Et, n-Pr, n-Bu, Bn) stereoselectively in good yields. The 6-endo isomers 15a-e and 6-exo isomers 16a-e were easily obtained
已经开发出一种新的合成方法,用于对环烷环系统的6位区域进行区域特异性烷基化。托烷5和12的烷基化,去磺酰化和脱保护作用提供了一系列6-内-烷基tropan-2-one衍生物8a-e,15a-e和16a-e(R = Me,Et,n -Pr,n -Bu, Bn)立体选择性好收率。6-内异构体15a-e和6 - exo异构体16a-e容易获得为纯非对映异构体。