Molecular Diversity 2006-05-01

Three-component synthesis of functionalized 5-oxo-4,5-dihydroindeno[1,2-b]pyrans.

Issa Yavari, Mehdi Sirouspour, Sanaz Souri

Index: Mol. Divers. 10(2) , 265-70, (2006)

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Abstract

Protonation of the reactive intermediates produced in the reaction between alkyl(aryl) isocyanides and dialkyl acetylenedicarboxylates by indan-1,3-dione leads to vinylnitrilium cations, which undergo carbon centered Michael type addition with the conjugate base of the CH-acid to produce functionalized 5-oxo-4,5-dihydroindeno[1,2-b]pyrans.