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Cover Picture: Oxidative Addition to Palladium(0) Made Easy through Photoexcited‐State Metal Catalysis: Experiment and Computation (Angew. Chem. Int. Ed. 11/2019)
Author(s) -
Kancherla Rajesh,
Muralirajan Krishnamoorthy,
Maity Bholanath,
Zhu Chen,
Krach Patricia E.,
Cavallo Luigi,
Rueping Magnus
Publication year - 2019
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201900572
Subject(s) - alkylation , chemistry , alkyl , photochemistry , bromide , oxidative addition , palladium , catalysis , organic chemistry
Excited‐state palladium catalysis for the stereoselective decarboxylative alkylation of α,β‐unsaturated acids is described by M. Rueping, L. Cavallo et al. in their Communication on page 3412 ff. Oxidative addition of alkyl bromide to ground state Pd0 is an energy‐demanding, high‐barrier process; hence, the reaction cannot proceed in the absence of light (dark side of the image). However, Pd0 in its triplet state, generated by visible light can easily react with the alkyl bromide through a barrierless single‐electron transfer leading to decarboxylative alkylation (image in sunlight).