Cobalt-catalyzed benzylic C–H amination via dehydrogenative-coupling reaction
摘要:
An efficient direct benzylic C-H amination via dehydrogenative-coupling by using an inexpensive catalyst/oxidant (CoBr2/(BuOOBu)-Bu-t-Bu-t) system is described. Various unmodified amides including primary or secondary sulfonamides, carboxamides, and carbamates preformed well with benzylic hydrocarbons with moderate to good yields. (C) 2011 Elsevier Ltd. All rights reserved.
Sulfoximidations of Benzylic C−H bonds by Photocatalysis
作者:Han Wang、Duo Zhang、Carsten Bolm
DOI:10.1002/anie.201801660
日期:2018.5.14
An efficient photocatalytic functionalization of compounds with benzylic C−Hbonds by sulfoximidation in visible light is described. The mild reaction conditions allow the use of a broad array of substrates, including diarylmethane, alkyl arenes, arylacetonitrile, 2‐arylacetate, and alkynyl aryl methanes. The sulfoximidation process is highly chemoselective and leads to the corresponding sulfoximines
An efficient direct benzylic C-H amination via dehydrogenative-coupling by using an inexpensive catalyst/oxidant (CoBr2/(BuOOBu)-Bu-t-Bu-t) system is described. Various unmodified amides including primary or secondary sulfonamides, carboxamides, and carbamates preformed well with benzylic hydrocarbons with moderate to good yields. (C) 2011 Elsevier Ltd. All rights reserved.