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IJC-B Vol.46B [2007] >
IJC-B Vol.46B(10) [October 2007] >


Title: Synthesis of benzoxazole-2-ones, benzothiazole-2-ones and their 2-thione derivatives: Efficient conversion of 2-thione to 2-oxo derivatives
Authors: Singh, M S
Singh, Pallavi
Singh, Shweta
Keywords: Benzoxazole-2-ones
Benzothiazole-2-ones
Oxazolidin-2-ones
Oxazolidin-2-thiones
Issue Date: Oct-2007
Publisher: CSIR
Abstract: A highly practical procedure for preparing benzoxazole-2-ones, benzothiazole-2-ones and its 2-thione derivatives using ethylchloroformate and carbon disulfide and the corresponding aminophenols and aminothiophenols as the starting materials in one-pot protocol is presented. The yields vary from good to excellent, the conditions are mild, and the use of toxic and harmful chemicals is avoided. An efficient conversion of benzoxazole-2-thione to 2-one derivative in high yield has also been carried out.
Page(s): 1666-1671
ISSN: 0376-4699
Source:IJC-B Vol.46B(10) [October 2007]

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