Synthesis of coumarines and 4H-chromenes through the reaction of tert-butyl isocyanide and dialkyl acetylenedicarboxylates in presence of 2-hydroxybenzaldehydes

I Yavari, H Djahaniani, F Nasiri

Index: Yavari, Issa; Djahaniani, Hoorieh; Nasiri, Farough Synthesis, 2004 , # 5 p. 679 - 682

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Citation Number: 43

Abstract

There has been considerable interest in the 2-oxo-2H-chromene (coumarine) and 4H-chromene ring systems as a result of their toxicity, carcinogenicty and photodynamic effects. There have been many reported studies on the synthesis 2-oxo-2H-chromene and 4H-chromene ring structures. [1-10] As part of our current studies on the development of new routes to heterocyclic and carbocyclic systems, [11] we now report the reaction between tert-butyl isocyanide ...