Studies on 2, 1??benzisoxazoles. Behaviour towards electrophilic substitution and cycloaddition reactions

RC Boruah, JS Sandhu…

文献索引：Boruah, R. C.; Sandhu, J. S.; Thyagarajan, G. Journal of Heterocyclic Chemistry, 1981 , vol. 18, p. 1081 - 1084

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被引用次数: 15

摘要

Abstract The behaviour of 2, 1-benzisoxazoles (anthranils) towards electrophilic substitutions has been studied. Nitration of 5-chloro-2, 1-benzisoxazole (VII) exclusively gives 4-nitro-5-chloro-2, 1-benzisoxazole (XII). However, 5-chloro-3-phenyl-2, 1- benzisoxazole (VIII) gives dinitrated products XIII, one nitro group entering at position C 7 instead of C 4 of the carbocyclic ring and the other at the 4′ position of the 3-aryl ring. ...