Abstract
Phosgene and benzoxazolin-2-one in the presence of diethylaniline gives benzoxazolin-2-one-3-carbonyl chloride. The latter and aliphatic alcohols, in the presence of a hydrogen chloride acceptor, gives esters of benzoxazolin-2-one-3-carboxylic acid.
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References
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Poznanskaya, N.L., Ivanova, S.N., Mel'nikov, N.N. et al. Some aliphatic esters of benzoxazolin-2-one-3-carboxylic acid. Chem Heterocycl Compd 3, 339–340 (1967). https://doi.org/10.1007/BF00945358
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DOI: https://doi.org/10.1007/BF00945358