1H-1,2,4-Benzotriazepines

Benzo[b]thiophenium, 1,2,3,5-tetramethyl-theoretical methods, 4, 3 Benzo[b]thiophenium salts preparation, 4, 723-724 Ben2o[b]thiophen-4-one, 4,5,6,7-tetrahydro-synthesis, 4, 905-906 5H-Benzo[b]thiophen-4-one, 6,7-dihydro-synthesis, 4, 900 Benzo[b]thiophyne, 4, 750 1H- 1,3,4-Benzotriazepine, 2,3-dihydro-synthesis, 7, 637 1H-1,2,4-Benzotriazepines synthesis, 7, 638 1,2,5-Benzotriazepines synthesis, 7, 640... 

H-1,2,4-Benzotriazepines (506) can be prepared by reaction of hydrazidoyl chlorides (504) with cyano compounds via the nitrilium salt (505) (74T195). 

C2 5H2 3N5O5, 2-Acetamido-8-methyl-4,9-dioxo-6,7-diphenyl-6,7,8,9-tet-rahydro-4H-pyrazino[1,2-a]-s-triazine dihydrate, 41B, 336 C2 5H2 8INO2 f 2-Benzyl-1,2,3,4-tetrahydro-6,7-dimethoxy-2-methyl-1 -phenylisoquinolinium iodide, 43B, 350 C26H19N3, 1,3,5-Triphenyl-1H-1,2,4-benzotriazepine, 44B, 246 C26H2oBr2Nfi, 1,1 -Azo-2-phenylimidazo[1,2-a]pyridinium dibromide, 38B, 86... 

Amino-4-methyI-1H-1,3,4-benzotriazepin-5(4//)-one Hydrobromides 16 General Procedure 35 ... 

The hydrazones or semicarbazones of 2-aminoaryl ketones (519) react with paraformaldehyde to give the 2,3-dihydro-1H-1,3,4-benzotriazepine (520) (70BCJ135), and with ethyl chloroformate to give the 2-oxo analogue (521) (74JPS838). Compounds of type (521) can also be prepared by the reaction of 2-aminoaryl ketones with ethoxycarbonylhydrazine. 

H-4,5-Dihydro-1,2,5-benzotriazepin-4-ones (516 R =C02Et or CN) can be prepared by cyclization of the diazonium salts (515). 

C20H2 ftN20ii, 5-Methoxyindole-2-yl- (1 -ethylenedioxy-2 - ((1 -ace-tyl-a,7-yl)-piperidine-3"-yl)ethane), 446, 347 C2 0H2 5N3O6, 4-6enzoyl-5-ethoxy-2-methy1-7,8-methylenedioxy-4,5-di-hydro-1H-l,3,4-benzotriazepine hydrate methanol solvate, 426, 281 C20H26N2O6, 6,6 -(3,6,9,12-Tetraoxa-tetradeca-1,14-dioxy)-2,2 -bi-pyridine, 456, 414... 

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