Asymmetric Total Synthesis of Soraphen A: A Flexible Alkyne Strategy
作者:Barry M. Trost、Joshua D. Sieber、Wei Qian、Rajiv Dhawan、Zachary T. Ball
DOI:10.1002/anie.200901907
日期:2009.7.13
A triple‐bond bonanza: The alkyne functional group can be a valuable handle for organic synthesis because the alkyne unit can function both as a nucleophile or as an electrophile when activated with an appropriate metal catalyst. This dual nature of the alkyne moiety has been exploitated for the concise totalsynthesis of the natural product soraphen A (see retrosynthesis; PMB=para‐methoxybenzyl,
三键富矿:炔烃官能团可以成为有机合成的重要手段,因为炔烃单元在用适当的金属催化剂活化时既可以用作亲核试剂,也可以用作亲电试剂。炔烃部分的这种双重性质已被用于天然产物索拉芬 A 的简明全合成(参见逆合成;PMB=对甲氧基苄基,TBS=叔丁基二甲基甲硅烷基)。