Detail of "15424-14-3"

Reference

Spiropyran compounds

Spiropyran compounds. Ishige, Sadao; Saeki, Keizo; Okazaki, Mitsuo; Sato, Kozo (Fuji Photo Film Co., Ltd., Japan). Japan. Kokai JP 52042880 4 Apr 1977 Showa, 6 pp. (Japanese). (Japan). CODEN: JKXXAF. CLASS: IC: C07D491-10. APPLICATION: JP 75-119512 3 Oct 1975. DOCUMENT TYPE: Patent CA Section: 40 (Dyes, Fluorescent Whitening Agents, and Photosensitizers) Section cross-reference(s): 28 I (R=Ac, CO2Et, C17H35, Bz, CMe3, 1-C10H7, 4-ClC6H4, 4-C6H4NO2, 4-MeOC6H4, 2,4-Cl2C6H3; R1R2=benzo; R2=H, Cl, Me, NO2; R3=H, Et2N, PhEtN, EtO, PhCH2O; X=S, NR4; R4=Bu, Ph, PhCH2, 4-ClC6H4, 4-MeC6H4; X1=O, NR5; R5=Ph, 4-ClC6H4), useful as pressure-sensitive color formers, are prepd. For example, .alpha.-(phenylimino)-2H-1-benzopyran [60373-91-3] and N-phenylbenzenecarbohydrazonoyl chloride [15424-14-3] in benzene were treated with Et3N at room temp. to give 53% I (R=Ph, R1=R2=R3=H, X=X1=NPh) [63738-50-1]; 15 other I were prepd.

Study of the mechanism of electrochemical oxidation of acyl halide arylhydrazones

Study of the mechanism of electrochemical oxidation of acyl halide arylhydrazones. Ivanova, V. Kh.; Buzykin, B. I.; Kitaev, Yu. P. (Inst. Org. Fiz. Khim. im. Arbuzova, Kazan, USSR). Nov. Polyarogr., Tezisy Dokl. Vses. Soveshch. Polyarogr., 6th, 83-4. Edited by: Stradins, J. "Zinatne": Riga, USSR. (Russian) 1975. CODEN: 34DIA8. DOCUMENT TYPE: Conference CA Section: 72 (Electrochemistry) Section cross-reference(s): 22 Two nonreversible bands were found on the Pt electrode in nonaq. MeCN solns. during electrochem. oxidn. of benzoyl chloride phenylhydrazone (I) [15424-14-3], 4-bromobenzoyl chloride phenylhydrazone (II) [25939-12-2], and benzoyl chloride 4-bromophenylhydrazone (III) [41626-19-1]. With cyclic voltammetry, electrolysis under controlled potentials, coulometry, IR and UV spectroscopy the mechanism of oxidn. of the 1st band was studied. The basic chem. reaction of I and II was dehydrodimerization of the primarily formed hydrazone radicals at the para position of the Ph ring with subsequent oxidn. of the dimer to the cation-radical. The homogeneous side-reaction led to the formation of 1,4-dihydro-1,2,4,5-tetrazine [61626-05-9], on further oxidn. it produced the corresponding cation radical. In substitution in the para position of the Ph ring of III only this reaction was found and the formation of the linear dimer did not occur.Except for chemicals metioned above, 61626-05-9 and 25939-12-2 are also used. .