Naphtho triazine, 2-aryl

Diazotization of substituted o-aminobenzylamines of the type 28, R = alkyl, aryl, acyl, gives 3-substituted 3,4-dihydrobenzo-l,2,3-triazines (29). o-Aminobenzylamine does not react similarly, but gives a product to which structure 30 has been assigned. Treatment of 1,8-diaminonaphthalene (31, R H) with nitrous acid gives naphtho[l,8-... 

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