Benzimidazoles 2-amino

Benzimidazole, 2-amino-5-bromo-l-methyl-diazo coupling, 5, 429 Benzimidazole, 2-amino-6-bromo-1 -methyl-diazo coupling, 5, 429 Benzimidazole, 2-amino-1-ethyl-alkylation, 5, 438 Benzimidazole, 2-amino-1-methyl-acylation, 5, 438 bromination, 5, 429 tautomerism, 5, 368 Benzimidazole, 4-amino-2-methyl-diazo coupling, 5, 429 Benzimidazole, 2-aroyl-mass spectra, 5, 360 Benzimidazole, 1-aryl-metallation, 5, 448 reactions... 

Photolytic. Irradiation of trifluralin in hexane by laboratory light produced a,a,a-trifluoro-2,6-dinitro-A-propyl-jo-toluidine and a,a,a-trifluoro-2,6-dinitro-p-toluidine. The sunlight irradiation of trifluralin in water yielded a,a,a-trifluoro-A, 7 -dipropyl-5-nitrotoluene-3,4-diamine, a,a,a-trifluoro-A/ ,A/ -dipropyltoluene-3,4,5-triamine, 2-ethyl-7-nitro-5-(trifluoromethyl)benzimidazole, 2,3-dihydroxy-2-ethyl-7-nitro-l-propyl-5-(trifluoromethyl)benzimidazoline, and 2-ethyl-7-nitro-5-(trifluoromethyl)benzimidazole. 2-Amino-6-nitro-a,a,a-trifluoro-p-toluidine and 2-ethyl-5-nitro-7-(trifluoromethyl)benzimidazole also were reported as major products under acidic and basic conditions, respectively (Crosby and Leitis, 1973). In a later study, Leitis and Crosby (1974) reported that trifluralin in aqueous solutions was very unstable to sunlight, especially in the presence of methanol. The photodecomposition of trifluralin involved oxidative TV-dealkylation, nitro reduction, and reductive cyclization. The principal photodecomposition products of trifluralin were 2-amino-6-nitro-a,a,a-trifluoro-jo-toluidine, 2-ethyl-7-nitro-5-(trifluoromethyl)benzimida-zole 3-oxide, 2,3-dihydroxy-2-ethyl-7-nitro-l-propyl-5-(trifluoromethyl)benzimidazole, and two azoxybenzenes. Under alkaline conditions, the principal photodecomposition product was 2-ethyl-7-nitro-5-(trifluoromethyl)-benzimidazole (Leitis and Crosby, 1974). 

BENZIMIDAZOLE, 2-PENTAFLUOROETHYL-[Pg.224]

Benzimidazole, 2-amino-, 56, 142 Benzimidazole, 2-(4-amino-l-benzyl-5,5-dimethyl-2,5-dihydro-2-oxopyrrol-3-yl)-, 57, 151... 

Benzimidazol 2-Amino-l-(ethoxy-methyl)- E14a/2, 191 (Cl -> N) lH-l,3,4-Benzotriazepin 3,4-Dime-thyl-5-oxo-2,3,4,5-tetrahydro-EI4a/3. 562 [(2-NH2-Ar)-CO-N(CH3)-NH-CH3 + CH20]... 

BENZIMIDAZOLE see BCB750 IH-BENZIMIDAZOLE (9CI) see BCB750 BENZIMIDAZOLE, 2-AMINO-5-BENZOYL- see AIHOOO... 

The etherification of 4-mercaptoacetanilide with w-propyl bromide gives rise to the formation of 2-nitro-4 (propylthio) acetanilide with the elimination of one mole of HBr. The resulting product upon hydrolysis converts it to an amine, reduction with SnCl2 to a diamine, and finally interaction with S-methyl thiourea affords eyelization to yield carbamie aeid [5-(propylthio)-IH benzimidazol-2-amino]. This upon acetylation with methyl ehloroformate affords the offieial eompound albendazole. 

See Asulam 2-Am i nobenzi m idazole CAS 934-32-7 EINECS/ELINCS 213-280-6 Synonyms 2-AB 2-Amino-1H-benzimidazole 1H-Benzimidazol-2-amine 2-Benzimidazolamine Benzimidazole, 2-amino-2-lminobenzimidazoline Empin cal C7H7N3... 

Benzilic acid methyl ester. See Methyl benzilate Benzilidene acetone. See Benzylidene acetone 1H-Benzimidazol-2-amlne 2-Benzimidazolamine Benzimidazole, 2-amino-. See 2-Aminobenzimidazole Benzimidazole carbamate CAS 18538-45-9... 

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