期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 58, 期 27, 页码 9199-9203出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201902509
关键词
allylic compounds; cobalt; photochemistry; regioselectivity; synthetic methods
资金
- JSPS KAKENHI [JP15H05802, JP17H03049, JP18H06097]
Co-catalyzed allylic substitution reactions have received little attention, arguably because of the lack of any known advantage of Co catalysis over either Rh or Ir catalysis. Described here is a general and regioselective Co-catalyzed allylic alkylation using an in situ catalyst activation by organophotoredox catalysis. This noble-metal-free catalytic system exhibits unprecedentedly high reactivities and regioselectivities for the allylation with an allyl sulfone, for the first time, representing the unique synthetic utility of the Co-catalyzed method compared to the related Rh-and Ir-catalyzed reactions.
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