An expeditious and environmentally friendly synthesis of 3-substituted isocoumarins using microwave irradiation.

Khalid Mohammed Khan, Sumbul Ahmed, Zulfiqar Ali Khan, Mubeen Rani, Shahnaz Perveen, Wolfgang Voelter

Index: Nat. Prod. Res. 22(13) , 1120-7, (2008)

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Abstract

A microwave-assisted, environmentally friendly, high-yielding, time-saving synthesis of medicinally important 3-substituted isocoumarins was carried out in a single step by direct condensation of homophthalic acid with aryol and acyl chlorides under solvent-free conditions without any solid support. The synthesised isocoumarins were structurally characterised by microanalysis, 1H NMR, EI, IR and UV.