Stereoselective [3+2] cycloaddition of N-tert-butanesulfinyl imines to arynes facilitated by a removable PhSO<sub>2</sub>CF<sub>2</sub> group: synthesis and transformation of cyclic sulfoximines
作者:Wenchao Ye、Laijun Zhang、Chuanfa Ni、Jian Rong、Jinbo Hu
DOI:10.1039/c4cc05042h
日期:——
unprecedented [3+2] cycloaddition between N-tert-butanesulfinyl imines and arynes provides a stereoselective method for the synthesis of cyclic sulfoximines. Not only does the difluoro(phenylsulfonyl)methyl group play an important role in facilitating the cycloadditionreaction, it can also be removed or substituted through the transformation of the difluorinated cyclic sulfoximines to cyclic sulfinamides
Decarboxylative difluoromethylation of aldehydes with PhSO 2 CF 2 COOK: A facile and efficient access to difluoromethylated carbinols
作者:Yu-Jun Zhu、Zhong-Liang Lei、Da-Kang Huang、Bo Lian、Zhen-Jiang Liu、Xiao-Jun Hu、Jin-Tao Liu
DOI:10.1016/j.tetlet.2018.07.021
日期:2018.8
A novel decarboxylative difluoromethylation reaction of PhSO2CF2COOK with aldehydes under metal- and ligand-free conditions has been developed. The reaction is very mild and tolerates a wide range of aldehydes (both enolizable and non-enolizable aldehydes), providing a facile and efficient method for the synthesis of structurally diverse difluoromethylated carbinols in moderate to excellent yields