Burmistrov,S.I.; Markov,V.I., Journal of general chemistry of the USSR, 1961, vol. 31, p. 1552 - 1554
作者:Burmistrov,S.I.、Markov,V.I.
DOI:——
日期:——
Stereoinversion of Unactivated Alcohols by Tethered Sulfonamides
作者:Paul T. Marcyk、Latisha R. Jefferies、Deyaa I. AbuSalim、Maren Pink、Mu‐Hyun Baik、Silas P. Cook
DOI:10.1002/anie.201812894
日期:2019.2.4
remains an undeveloped area of organic synthesis. Moreover, catalytic activation of this difficult electrophile with predictable stereo-outcomes presents an even more formidable challenge. Described herein is a simple iron-based catalyst system which provides the mild, direct conversion of secondary and tertiary alcohols to sulfonamides. Starting fromenantioenriched alcohols, the intramolecular variant
A Hydrazone-Based <i>exo</i>
-Directing-Group Strategy for β C−H Oxidation of Aliphatic Amines
作者:Zhongxing Huang、Chengpeng Wang、Guangbin Dong
DOI:10.1002/anie.201600912
日期:2016.4.18
group (DG) strategy developed for the functionalization of unactivated primary β C−H bonds of aliphaticamines. Conveniently synthesized from protected primary amines, the hydrazone DGs are shown to site‐selectively promote the β‐acetoxylation and tosyloxylation via five‐membered exo‐palladacycles. Amines with a wide scope of skeletons and functional groups are tolerated. Moreover, the hydrazone DG