A versatile synthesis of 3-phenylsulfonylpyrroles from α-amino acids
Reaction between α-benzamidoalkyl ketones 4a-e and the vinyl phosphonium salt 1 produces 3-phenylthio-3-pyrrolines 5a-e which can be converted into N-benzyl-3-phenylsulfonyl pyrroles 7a-e by m-CPBA oxidation, diborane reduction and DDQ aromatisation.
Burley,Hewson
p. 1151 - 1154
(2007/10/02)
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