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- W2318496618 abstract "The condensation of aromatic nitriles with 4-aminoazobenzene by AlCl3 gave the following amidines having azo group N- (4-phenylazo) phenylbenzamidine (1a), N- (4-phenylazo) phenyl-m-toluamidine (1b), N- (4-phenylazo) phenyl-p-toluamidine (1c), p-chloro-N- (4-phenylazo) phenylbenzamidine (1d) and N- (4-phenylazo) phenyl-2-naphthamidine (1e).ArC=NH-NH-_??_-N=N-_??_ Ar=C6H5 (1a), m-CH3C6H4 (1b), p-CH3C6H4 (1c), p-ClC6H4 (1d), 2-C10H7 (1e) The HCl-adducts of the above amidines were converted into the corresponding 2-aryl-5-phenylazobenzimidazole [(2a), (2b), (2c) and (2d)] by N'-chlorination by sodium hypochlorite and the subsequent dehydrochlorination by NaHCO3.ArC=N-NH-_??_-N=N-_??_ Ar=C6H5 (2a), m-CH3C6H4 (2b), p-CH3C6H4 (2c), p-ClC6H4 (2d) Upon treatment with N, N-dimethylformamide dimethylacetal, the above amidines gave the corresponding N-dimethylaminomethylidene-N'- (4-phenylazo) phenylamidine [(3a), (3b), (3c), (3d) and (3e)].ArC-N=CHN (CH3) 2=N-_??_-N=N-_??_ Ar=C6H5 (3a), m-CH3C6H4 (3b), p-CH3C6H4 (3c), p-ClC6H4 (3d), 2-C10H7 (3e) The corresponding N'- (4'-phenylazo) benzoyl-N- (4-phenylazo) -phenylamidine [(4a), (4b), (4d) and (4e)] were also obtained by the condensation of p-phenylazobenzoyl chloride with the aid of NaHCO3.ArC=NCO-_??_-N=N-_??_-NH-_??_-N=N-_??_ Ar=C6H5 (4a), m-CH3C6H4 (4b), p-ClC6H4 (4d), 2-C10H7 (4e) (1a), (1b), (1c), (2a), (2b), (2c), (3a), (3b), (3c), (4b) and (4d) dyed acetate fiber yellow or light yellow." @default.
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- W2318496618 date "1971-01-01" @default.
- W2318496618 modified "2023-10-04" @default.
- W2318496618 title "Synthesis and Reaction of Amidine Having Azo Group" @default.
- W2318496618 doi "https://doi.org/10.5059/yukigoseikyokaishi.29.420" @default.
- W2318496618 hasPublicationYear "1971" @default.
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