Synlett

An efficient synthesis of benzothiazoles by direct condensation of carboxylic acids with 2-aminothiophenol under microwave irradiation

AK Chakraborti, C Selvam, G Kaur, S Bhagat

Index: Synlett, , # 5 p. 851 - 855

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Citation Number: 74

Abstract

... Synlett 2004(5): 0851-0855 DOI: 10.1055/s-2004-820012. LETTER. © Georg Thieme Verlag Stuttgart · New York ... The reaction of 1 with carboxylic acids requires excess of polyphosphoric acid at 150-220 °C for 2-4 hours [14] [18] or P 2 O 5 -MeSO 3 H at 70 °C for 10 hours. ...