Detail of "10079-20-6"

Reference

Fiber-reactive navy disazo dyes

Fiber-reactive navy disazo dyes. Corso, Anthony J.; Roe, Kathleen M. (American Hoechst Corp., USA). Eur. Pat. Appl. EP 122600 A1 24 Oct 1984, 12 pp. DESIGNATED STATES: R: CH, DE, FR, GB, IT, LI. (English). (European Patent Organization). CODEN: EPXXDW. CLASS: IC: C09B062-513; D06P003-66; C09B067-26. APPLICATION: EP 84-104104 12 Apr 1984. PRIORITY: US 83-485691 18 Apr 1983. DOCUMENT TYPE: Patent CA Section: 41 (Dyes, Organic Pigments, Fluorescent Brighteners, and Photographic Sensitizers) The title dyes have the general structure I, where M is H or an alkali or alk. earth metal and Q and Q1 are the same or different and represent CH:CH2 or CH2CH2X (X = OH, Br, Cl, sulfato, etc.) but not simultaneously CH2CH2OSO3M. I can be prepd. as powders or as liq. compns. contg. 5-45% dye and 0-6% inert inorg. salt and adjusted to pH 2.5-4.5. Thus, coupling of H acid mono-Na salt [5460-09-3] with diazotized 4-H2NC6H4SO2CH:CH2 [25781-90-2] at pH 1-2 and than with diazotized 3,4-H2N(MeO)C6H3SO2CH2CH2OSO3H [10079-20-6] at pH 6.0-6.5 followed by spray drying gave I (Q = CH2CH2OSO3Na, Q1 = CH:CH2, M = Na) [93912-56-2].

Reactive azo dyes of the vinyl sulfone type

Reactive azo dyes of the vinyl sulfone type. Luchkevich, E. R.; Slezko, G. F.; Babikova, E. S.; Khomut, V. M.; Zhurakivskii, I. M.; Bagal, I. L.; Belyaev, V. L.; Tverdokhlib, L. V.; Pylyuk, M. S. (Ivano-Frankovsk Plant of Fine Organic Synthesis, USSR).In this article, certain chemicals are used. One of their cas registry numbers is 10079-20-6 U.S.S.R. SU 1659440 A1 30 Jun 1991 From: Otkrytiya, Izobret. 1991, (24), 93. (Union of Soviet Socialist Republics). CODEN: URXXAF. CLASS: ICM: C09B062-51. APPLICATION: SU 88-4462775 19 Jul 1988. DOCUMENT TYPE: Patent CA Section: 41 (Dyes, Organic Pigments, Fluorescent Brighteners, and Photographic Sensitizers) In the prepn. of reactive azo dyes by coupling diazotized 2-amino-4-(b-sulfatoethylsulfonyl)anisole (I) with a naphtholsulfonic acid deriv. or sulfopyrazolone deriv. in the presence of alkali, the yield is increased and the formation of insol. matter is suppressed by suspending I in water at 25-40°, diazotizing with NaNO2 at I-HCl ratio 1:(0.34-0.8) while cooling from 19-25° to 13-20°, and coupling at diazo component-coupling component-alkali ratio 1:1.05:(0.3-0.55). The resulting azo dye can be copperized. .