Synthesis of Angularly Fused Carbocycles via Tandem Radical Cyclization of α-Carbonyl Radicals
作者:Chandran Prakash、Arasambattu K. Mohanakrishnan
DOI:10.1002/ejoc.200700986
日期:2008.3
An α-carbonyl radical cyclization approach towards the synthesis of angularly fused tricyclic systems is described. On reduction with tributyltin hydride, bromo ketones yield a α-carbonyl radical that undergoes successive 5-exo-dig/trig cyclizations, resulting in two or four contiguous stereocenters. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008)
描述了一种用于合成角稠合三环系统的 α-羰基自由基环化方法。在用三丁基氢化锡还原时,溴酮产生一个 α-羰基自由基,该自由基经历连续的 5-exo-dig/trig 环化,产生两个或四个连续的立体中心。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008)