Nucleophilic Fluoromethylation of Aldehydes with Fluorobis(phenylsulfonyl)methane: The Importance of Strong Li-O Coordination and Fluorine Substitution for CC Bond Formation
作者:Xiao Shen、Laijun Zhang、Yanchuan Zhao、Lingui Zhu、Guangyu Li、Jinbo Hu
DOI:10.1002/anie.201006931
日期:2011.3.7
The tighter, the better! Fluorobis(phenylsulfonyl)methane reacts readily with aldehydes to give addition products in excellent yields (see scheme; LiHMDS=lithium hexamethyldisilazide), which is in sharp contrast to previous findings. Both strong Li–O coordination at low temperature and fluorine substitution play important roles in successful CC bond formation.
越紧越好!氟双(苯磺酰基)甲烷易于与醛反应,以优异的收率得到加成产物(参见方案; LiHMDS =六甲基二硅叠氮化锂),这与以前的发现形成了鲜明的对比。低温下强大的Li–O配位和氟取代在成功形成CC键中起着重要作用。