Rearrangement of 3??methoxy substituted [2, 1] benzisoxazole??and naphth [2, 3??c] isoxazolequinones in dimethyl sulfoxide solution

T Torres, SV Eswaran, W Schäfer

Index: Torres, Tomas; Eswaran, S.V.; Schaefer, Wolfram Journal of Heterocyclic Chemistry, 1985 , vol. 22, p. 705 - 711

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Citation Number: 3

Abstract

708 T. Torres, SV Eswaran, W. Schäfer Vol. 22 quiñones were prepared from 3 and 10 by oxidative cycli- sation using lead tetraacetate [1]. Because of low solubility of compounds 1 in organic solvents and the inability to purify them by chromatography they may contain small amounts of 3; impurities of 0.5% or less cannot possibly be detected by tic in this case. If indeed quiñones 3 and 10 are reaction products, one has to think of a stabilization of a triplet nitrene by proton ...