Abstract: 6-Phenyl-4H-s-triazolo[4,3-a][1,4]benzodiazepines of the formula (IV): ##SPC1##wherein R is selected from the group consisting of hydrogen, alkyl of 1 to 3 carbon atoms, inclusive, phenyl, benzyl and -COOR' in which R' is alkyl of 1 to 4 carbon atoms, inclusive; wherein R.sub.1 is selected from the group consisting of hydrogen and alkyl of 1 to 3 carbon atoms, inclusive; and wherein R.sub.2, R.sub.3, R.sub.4 and R.sub.5 are selected from the group consisting of hydrogen, alkyl of 1 to 3 carbon atoms, inclusive, halogen, nitro, cyano, trifluoromethyl, and alkoxy, alkylthio, alkylsulfinyl, alkylsulfonyl, alkanoylamino and dialkylamino in which the carbon chain moieties are of 1 to 3 carbon atoms, inclusive, are produced by condensing a 1,3-dihydro-5-phenyl-2H-1,4-benzodiazepine-2-thione of the formula (I): ##SPC2## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4 and R.sub.5 are defined as above, with an organic acid hydrazide of the formula: ##EQU1## wherein R is defined as above.

Abstract: 2,9-Dihydro-3H-pyrido[3,2-c]-s-triazolo[4,3-a][1,5]-benzodiazepin-3-ones ##SPC1##Wherein R' and R" are alkyl of 1 to 3 carbon atoms, inclusive; or the group ##EQU1## together is pyrrolidino, piperidino, 4-methylpiperazino or [4-(2-hydroxyethyl)]piperazino; wherein R.sub.2 and R.sub.3 are hydrogen, chloro, bromo, trifluoromethyl, or alkyl defined as above and wherein R.sub.4 is hydrogen, alkyl as defined above or ##EQU2## in which n is the integer 2 or 3 or R', R" or ##EQU3## are defined as above, are obtained by reacting a compound of the formula 1 ##SPC2##Wherein R.sub.2, R.sub.3, R', R", or ##EQU4## are defined as above, with phosphorus pentasulfide to give the corresponding 5-thione compound (II); treating II with an alkyl carbazate to obtain the compound of formula III: ##SPC3##wherein R.sub.2, and R.sub.

Abstract: A multistep process for the production of a compound of the formula V: ##SPC1##wherein R' and R" are alkyl of 1 to 3 carbon atoms, inclusive or together ##EQU1## is pyrrolidino, piperidino, 4-methylpiperazino or morpholino; and wherein the rings A and B are unsubstituted, or substituted by one or more substituents selected from the group consisting of fluoro, chloro, bromo, nitro and trifluoromethyl, which comprises treating an equivalent of a compound of formula 1: ##SPC2##Wherein rings A and B are defined as above, with 2 equivalents of an .alpha.

Abstract: 9H-Dibenzoimidazodiazepine compounds of the formula: ##SPC1##Wherein R.sub.1 is hydrogen, alkyl, ##SPC2##In which W is H, chlorine, or fluorine, or R.sub.1 is ##EQU1## IN WHICH N IS AN INTEGER OF 2 TO 4, AND R.sub.o ' and R.sub.o ' are hydrogen or alkyl defined as above, or together ##EQU2## IS PYRROLIDINO, PIPERIDINO, N-methylpiperazino, or morpholino, wherein R.sub.3 and R.sub.4 are hydrogen or alkyl as defined above, or, R.sub.3 or R.sub.4 can be ##EQU3## IN WHICH ##EQU4## IS DEFINED AS ABOVE AND WHEREIN R.sub.2 and R.sub.6 are selected from the group consisting of hydrogen, halogen, or -CF.sub.3, are produced by multistep reactions.The compounds of the formula above and the pharmacologically acceptable acid addition salts thereof are useful sedatives and anti-depressants. They can also be administered to mammals to alleviate anxieties and produce tranquilization and sedation.

Abstract: A multi-step process for the preparation of 1-[(amino - or substituted amino)methyl]-6-phenyl-4H-s-triazolo-[4,3-a][1,4]benzodiazepines of the formula VI: ##SPC1##wherein R' is hydrogen or alkyl of 1 to 3 carbon atoms, inclusive, and wherein the rings A and B are unsubstituted or substituted by one or two substituents selected from the group consisting of chloro, fluoro, bromo, nitro, and trifluoromethyl, which comprises: treating a compound of the formula I: ##SPC2##wherein rings A and B are defined as above, with acetic anhydride and formic acid to obtain compound II: ##SPC3##wherein A and B rings have the significance as above, treating compound II with sufficient formaldehyde to produce compound III, the 3,5-bis(hydroxymethyl)derivative of II; treating III with phthalimide, triphenylphosphine and diethyl azodicarboxylate to give compound IV, the 3,5-bis(phthalimidomethyl) derivative of II; and treating IV with hydrazine hydrate to obtain a compound of formula V ##SPC4##wherein rings A and B are defined, a

Abstract: Compounds of the formulae IV and V: ##SPC1##wherein R.sub.o and R.sub.1 are hydrogen or alkyl of 1 to 3 carbon atoms, inclusive; wherein R.sub.2 is hydrogen, fluoro, chloro, or trifluoromethyl; wherein R.sub.3 is hydrogen or fluoro with the proviso that R.sub.3 cannot be fluoro, if R.sub.2 is chloro or trifluoromethyl; and wherein R.sub.4 is hydrogen, fluoro, chloro, bromo, trifluoromethyl, or nitro, are obtained by a multi-step reaction from the corresponding .alpha.-(phenyl)-o-toluidine of the formula I ##SPC2##wherein R.sub.2, R.sub.3, and R.sub.4 are defined as above, by treating I in sequence with an alkyl ester of orthoformic acid the resulting product with 2-alkyl-2-(aminoalkyl)-1,3-dioxolane or a 2-amino-alkanone dialkyl ketal and finally with titanium tetrachloride to obtain compound IV, and oxidizing compound IV to obtain the corresponding compound V.Compounds IV and V have minor tranquilizing activity which can be utilized to calm mammals or birds.

Abstract: Compounds of formula II ##SPC1##and its phthalimide derivative III: ##SPC2##wherein R.sub.0 and R.sub.1 are hydrogen or alkyl of 1 to 3 carbon atoms, inclusive; wherein R.sub.2 is hydrogen, chloro, fluoro, or trifluoromethyl; wherein R.sub.3 is hydrogen, or fluoro with the proviso that R.sub.3 is not fluoro, if R.sub.2 is chloro or trifluoromethyl; and wherein R.sub.4 is hydrogen, fluoro, chloro, bromo, nitro, or trifluoromethyl are prepared by reacting a compound of formula I: ##SPC3##wherein R.sub.0, R.sub.1, R.sub.2, R.sub.3, and R.sub.4 are defined as above, with formaldehyde to produce compound II and reacting II with phthalimide, triphenylphosphine and finally diethyl azodicarboxylate to give compound III.Compounds II and III are useful as important intermediates for the production of known 6-phenyl-4H-imidazo[1,2-a][1,4]benzodiazepine which compounds are active as tranquilizers and antianxiety agents.

Abstract: A compound of the formula: ##SPC1##Wherein R, R.sub.0, and R.sub.3 are hydrogen or alkyl of 1 to 3 carbon atoms, inclusive; wherein R.sub.1 and R.sub.2 are alkyl of 1 to 3 carbon atoms, or the group ##EQU1## together is pyrrolidino, piperidino, morpholino and N-methylpiperazino; wherein R.sub.7 is 2-pyridyl or a phenyl radical of the formula ##SPC2##Wherein R.sub.4 is hydrogen, fluoro, or chloro; wherein R.sub.5 is hydrogen or fluoro, with the proviso that R.sub.5 is not fluoro, when R.sub.4 is chloro; and wherein R.sub.6 is hydrogen, chloro, fluoro, bromo, trifluoromethyl, or nitro.The new compounds of formula II have tranquilizing and antianxiety activity and are thus useful to treat mammals and birds.