Methyl 2-(2-benzoylphenylamino)-2-oxoacetate and dimethyl 2,2'-(4,4'-methylenebis(4,1-phenylene)bis(azanediyl)) bis(2-oxoacetate) undergo a smooth reaction with triphenylphosphine and dialkyl acetylenedicarboxylates to produce corresponding highly functionalised 5-oxo-4,5-dihydro-1H-pyrroles and 5-oxo-2,5-dihydro-1H-pyrroles derivatives.
Efficient Synthesis of Highly Functionalized 5-Oxo-4,5-dihydro-1H-pyrroles and 5-Oxo-2,5-dihydro-1H-pyrroles Derivatives. -Title compounds (III) and (V) are prepared via intramolecular Wittig-reaction between dialkyl acetylenedicarboxylates and strong NH-acids. -(SOULDOZI*, A.; DADRASS, A. R.; RANJDOST, Z.;
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