Detail of "649-15-0"

Reference

Homogeneous redox catalysis of the reduction of p-toluenesulfonamides

Determination of kinetic and thermodynamic parameters. Kossai, Ridha (Lab. Electrochim. Org., Univ. Rennes, Rennes 35042, Fr.). Electrochim. Acta, 31(12), 1643-51 (French) 1986. CODEN: ELCAAV. ISSN: 0013-4686.There are some reagents with their cas registry numbers 66821-83-8 and 649-15-0 are used in this study. DOCUMENT TYPE: Journal CA Section: 72 (Electrochemistry) Section cross-reference(s): 67, 69 The redox catalysis of the redn. of tertiary p-toluenesulfonamides and gem-N-di-p-toluenesulfonamides by electrogenerated org. anion radicals, on a Hg cathode, was studied by cyclic voltammetry and controlled-potential electrolysis in DMF. Tertiary tosylamides, not directly reducible by electrochem. means in the presence of LiClO4 as a supporting electrolyte, were cleaved by electrogenerated pyrene anion radical. The new theor. treatments, recently developed by J. M. Saveant, et al. and extended to a soln. electron transfer (SET) type mechanism and cyclic voltammetry results, allowed one det. the rate-controlling step of the catalytic process and to calc. the std. rate const. of the homogeneous electron transfer reaction and the std. potential with respect to the tosylamide anion radical formation. .

Diazo copying process

Diazo copying process. (Matsushita Electric Industrial Co., Ltd., Japan). Jpn.Chemicals with cas numbers 88530-88-5 and 649-15-0 also play role. Tokkyo Koho JP 57057695 B4 6 Dec 1982 Showa, 4 pp. (Japanese). (Japan). CODEN: JAXXAD. CLASS: IC: G03C005-18. ICA: G03C001-60. APPLICATION: JP 75-34073 19 Mar 1975. DOCUMENT TYPE: Patent CA Section: 74 (Radiation Chemistry, Photochemistry, and Photographic and Other Reprographic Processes) A diazo copying process is claimed which include the following steps: (1) imagewise exposure and heating of a 2-component type diazo copying paper whose acidic heat-sensitive layer contains a diazosulfonate compd., a coupler, a cellulose type binder and an arom. amide compd. to form colored images and (2) uniform exposure of the copying paper to decomp. the diazosulfonate. Thus, a film support was coated with a compn. contg. cellulose acetate, urea, di-Na 1,8-dihydroxynaphthalene-3,6-disulfonate, Na 4-(p-tolylmercapto)-2,5-diethoxybenzenediazosulfonate, citric acid, and o-toluenesulfonamide to give a diazo copying film. The film was imagewise exposed while heated at 110° and subsequently fixed by a fluorescent lamp. .