E. J. Cross
Oct 22, 2008
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Journal
Journal of The Society of Dyers and Colourists
Abstract
Sulphonic acids of 1-amino-2-naphthol with a sulphonic group in the 8-position are readily converted by treatment with acetic anhydride into the corresponding sulphonic acids of 2-methylnaphth[1,2-d]oxazole, whereas those in which the 8-position is unsubstituted yield NO-diacetyl-derivatives.