engleski

Reactions with 1-benzotriazolecarboxylic acid chloride. VIII. synthesis of N-hydroxyisocyanate derivatives

1,3,5-Trihydroxy-1,3,5-triazine-2,4,6(1H,3H,5H)-trione (5), the trimer of hypothetical acid HO-N=C=O, was synthesized by hydrogenolysis of 1,3,5-tribenzyloxy-1,3-51,3,5-triazine-2,4,6(1H,3H,5H)-trione (4). Similarly, the 1-(N-hydroxycarbamoyl)benzotriazole (6), as "solid HONCO donor", was prepared by hydrogenolysis of its benzyl derivatives 2. Compound 4 was obtained by trimerization of intermediary N-benzyloxyisocianate (3), which liberates in the thermal disociation of 1-(N-benzyoxycarbamoyl)benzotriazole (2). In the reaction with 2-phenylethylamine, compound 6 gave N-hydroxy-N'-(2-phenylethy)urea (7).

1-benzotriazolecarboxylic acid chloride; N-hydroxyisocyanate; 1;3;5-trihydroxy-1;3;5-triazine-2;4;6(1H;3H;5H)-trione; 1-(N-hydroxycarbamoyl)benzotriazole; 1(N-benzyloxycarbamoyl)benzotriazole

nije evidentirano