| abstract |
1,260,196. 1,3,2 - Oxazaborinides. AMERICAN CYANAMID CO. 18 April, 1969 [27 May, 1968], No. 20044/69. Heading C2B. [Also in Division C4] In Example 9 the compound of the formula is prepared by reacting 2-(o-hydroxyphenyl)- benzothiazole with boric acid and acetic anhydride in acetic acid at reflux, and in Example 10 the compound of the formula is prepared by reacting 3-(benzimidazol-2-yl)- 2-naphthol with boric acid and acetic anhydride in acetic acid. The corresponding benzoxazole may also be used. The products are colourless fluorescent compounds having affinity for polyesters, nylon and acetate. |