A Rapid Microwave-Assisted Esterification Utilizing the Mukaiyama Supported Reagent

D. Donati; C. Morelli; M. Taddei

doi:10.1055/s-2005-869886

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Synfacts 2005(0): 0086-0086
DOI: 10.1055/s-2005-869886

Polymer-Supported Synthesis

A Rapid Microwave-Assisted Esterification Utilizing the Mukaiyama Supported Reagent

Contributor(s): Yasuhiro Uozumi, Yoichi M. A. Yamada, Takayasu Arakawa
D. Donati, C. Morelli, M. Taddei*
University Degli Studi di Siena, Italy

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Publication History

Publication Date:
20 July 2005 (online)

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Significance

The esterifications of seven alcohols and six carboxylic acids were found to proceed very smoothly in the presence of 2-chloro-1-methylpyridinium iodide (the so-called Mukaiyama reagent) supported on polystyrene resin with the aid of microwave heating. All reactions were performed at 80 °C for 4-18 minutes in CH₂Cl₂ and Et₃N to give high yields (64-96%) of the esters via simple filtration of resin (20 examples).