Synthesis of diethyl 2-(aryl) vinylphosphonates by the Heck reaction catalysed by well-defined palladium complexes
W Al-Maksoud, J Mesnager, F Jaber, C Pinel…
Index: Al-Maksoud, Walid; Mesnager, Julien; Jaber, Farouk; Pinel, Catherine; Djakovitch, Laurent Journal of Organometallic Chemistry, 2009 , vol. 694, # 20 p. 3222 - 3231
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Citation Number: 18
Abstract
Pd-catalysed procedures for the direct Heck arylation of diethyl vinylphosphonate with various aryl or heteroaryl halides toward the synthesis of diethyl 2-(aryl) vinylphosphonates are reported. Several homogeneous catalytic systems (ie Herrmann palladacycle, Nolan (NHC)-palladium catalyst, Pd (OAc) 2/PPh3) were used and compared within the study. High conversions and selectivities were achieved under optimised conditions (2mol%[Pd], NMP ...
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