Citation: Hossein Anaraki-Ardakani, Maziar Noei, Afrooz Tabarzad. Facile synthesis of N-(arylsulfonyl)-4-ethoxy-5-oxo-2, 5-dihydro-1H-pyrolle-2, 3-dicarboxylates by one-pot three-component reaction[J]. Chinese Chemical Letters, ;2012, 23(1): 45-48. doi: 10.1016/j.cclet.2011.09.010
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Three-component reaction of arylsulfonamides, dialkyl acetylenedicarboxylates, and ethyl chlorooxoacetate promoted by triphenylphosphine and triethylamine provides a sufficient route for the synthesis of dialkyl N-(arylsulfonyl)-4-ethoxy-5-oxo-2,5-dihydro-1H-pyrolle-2,3-dicarboxylates in good yields.
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