Synthesis of bis(o-hydroxyphenyl)-1,3,5-triazines, 1,2,4-triazoles, and oxadiazole by recyclization of the o-hydroxyphenyl-4-oxo-1,3-benzoxazinium cation
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Abstract
The acidic cyclization of disalicylamide gave 2-(o-hydroxyphenyl)- and 2-(o-acetoxyphenyl)-4-oxo-1,3-benzoxazinium perchlorates, by reaction of which with hydroxylamine, hydrazines, benzamidine, guanidines, and S-methylisothiourea bis(o-hydroxyphenyl)-1,2,4-oxadiazole, triazoles, and sym-triazines were synthesized. Mono- and bis (o-acetoxyphenyl) triazoles were obtained.
Keywords
Organic Chemistry Hydrazine Perchlorate Triazole Guanidine
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© Plenum Publishing Corporation 1983