Direct Esterification of Aromatic Aldehydes with Tetraphenylphosphonium Bromide under Oxidative N??Heterocyclic Carbene Catalysis

BT Ramanjaneyulu, M Pareek, V Reddy…

Index: Ramanjaneyulu, Bandaru T.; Pareek, Manish; Reddy, Virsinha; Vijaya Anand Helvetica Chimica Acta, 2014 , vol. 97, # 3 p. 431 - 437

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Abstract

Abstract An unconventional reagent, tetraphenylphosphonium bromide, was employed as a phenyl source in the direct transformation of aromatic aldehydes to the corresponding phenyl esters under oxidative N-heterocyclic carbene (NHC) catalysis. The phenyl esters were obtained in moderate yields under mild and organocatalytic conditions.