A Photoredox Coupling Reaction of Benzylboronic Esters and Carbonyl Compounds in Batch and Flow
作者:Yiding Chen、Oliver May、David C. Blakemore、Steven V. Ley
DOI:10.1021/acs.orglett.9b02307
日期:2019.8.2
Mild cross-coupling reaction between benzylboronic esters with carbonylcompounds and some imines was achieved under visible-light-induced iridium-catalyzed photoredox conditions. Functional group tolerance was demonstrated by 51 examples, including 13 heterocyclic compounds. Gram-scale reaction was realized through the use of computer-controlled continuous flow photoreactors.
Radical–radical cross coupling reactions of photo-excited fluorenones
作者:Simmi Sharma、Shaista Sultan、Shekaraiah Devari、Bhahwal Ali Shah
DOI:10.1039/c6ob01879c
日期:——
Radical–radical crosscouplingreactions of photoexcited 9-fluorenones have been accomplished for the first time, leading to the synthesis of 9-alkyl, pyrollidinyl and spiro-THF derivatives of 9-fluorenones. The method also reveals, for the first time, the behaviour of ketyl radicals in decarboxyaltive alkylation and ring expansion reactions.