Bioorganic & medicinal chemistry letters

Synthesis and antioxidant activity of thymol and carvacrol based Schiff bases

D Kumar, DS Rawat

Index: Beena; Kumar, Deepak; Rawat, Diwan S. Bioorganic and Medicinal Chemistry Letters, 2013 , vol. 23, # 3 p. 641 - 645

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Citation Number: 33

Abstract

Thymol and carvacrol are well known antioxidants found in the extract of the plants of thyme species. The Schiff bases of 2-iso-propyl-5-methyl-phenol (thymol/1a), 2-tert-butyl-5-methyl- phenol (1b) and 5-iso-propyl-2-methyl-phenol (carvacrol/1c) exhibited much better antioxidant activity than thymol and carvacrol in DPPH assay. Ten compounds (4k, 4l, 4r, 5k, 5l, 5q, 5r, 6k, 6l and 6r) showed better or similar activity as compared to the reference ...