Synthesis of bridgeheaded nitrogen systems. <i>s</i>‐triazolo[4,3‐<i>b</i>]‐<i>as</i>‐triazine, <i>s</i>‐triazolo[4,3‐<i>d</i>]‐<i>as</i>‐triazine and <i>s</i>‐triazolo[3,4‐<i>b</i>]‐1,3,4‐Thiadiazole ring systems

Abstract

Abstract By the reactions of hydrazino‐ as ‐triazines ( 1a‐d and 5 ) with cyanogen bromide were synthesized s ‐triazolo‐ as ‐triazines ( 2a‐d ) and ( 6 ). Likewise, similar reactions of amino‐ s ‐triazolethiols ( 7a‐e ) gave s ‐triazolo‐1,3,4‐thiadiazoles ( 8a‐e ). Compound 2a was brominated to 2g.