Electrophilic (phenylsulfonyl)difluoromethylation of thiols with a hypervalent iodine(III)–CF2SO2Ph reagent
作者:Wei Zhang、Jieming Zhu、Jinbo Hu
DOI:10.1016/j.tetlet.2008.06.064
日期:2008.8
A hypervalentiodine(III)–CF2SO2Ph compound (3) has been successfully prepared with selective nucleophilic reaction using PhSO2CF2SiMe3 reagent, and this previously unkown compound 3 was found to act as a new electrophilic (phenylsulfonyl)difluoromethylation reagent for a variety of S-nucleophiles under very mild reaction conditions.
使用PhSO 2 CF 2 SiMe 3试剂通过选择性亲核反应成功制备了高价碘(III)–CF 2 SO 2 Ph化合物(3),发现该以前未知的化合物3可作为新的亲电子基团(苯磺酰基)在非常温和的反应条件下,用于各种S-亲核试剂的二氟甲基化试剂。
Julia Olefination as a General Route to Phenyl (α-Fluoro)vinyl Sulfones
作者:Barbara Zajc、Maggie He、Arun Ghosh
DOI:10.1055/s-2008-1072513
日期:——
Mild and efficient synthesis of phenyl (α-fluoro)vinylsulfones via condensation of aldehydes and a ketone with a novel benzothiazolyl based bis-sulfone reagent is reported and this proceeds with moderate to good Z-stereoselectivity.
据报道,通过醛和酮与新型苯并噻唑基双砜试剂的缩合反应温和有效地合成苯基(α-氟)乙烯基砜,并且具有中等至良好的 Z 立体选择性。