Reference

Reactive monoazo dyes

Reactive monoazo dyes. (Sumitomo Chemical Co. 131-27-1 is just another one chemical used in this study., Ltd., Japan). Jpn. Kokai Tokkyo Koho JP 60006753 A2 14 Jan 1985 Showa, 7 pp. (Japanese). (Japan). CODEN: JKXXAF. CLASS: ICM: C09B062-51. ICS: D06P003-66. APPLICATION: JP 84-34025 23 Feb 1984. DOCUMENT TYPE: Patent CA Section: 41 (Dyes, Organic Pigments, Fluorescent Brighteners, and Photographic Sensitizers) The yellow title dyes for cotton were prepd. having free-acid form I (R = Me, Ph, NH2; R1 = H, Me, MeO, EtO; R2, R3 = H, Cl, Me, MeO, CO2H, SO3H; the 2 sulfo groups are on 1,5- or 4,8-positions). Thus, 2-aminonaphthalene-4,8-disulfonic acid [131-27-1] was diazotized, coupled with m-acetamidoaniline [102-28-3], treated with cyanuric chloride [108-77-0] and then m-H2NC6H4SO2CH2CH2OSO3H [2494-88-4], and salted to give I (R = Me; R1 = R2 = R3 = H; m-SO2CH2CH2OSO3H; 2 sulfo groups on 4,8-positions; Na salt) [86278-36-6]. . 131-27-1 is just another one chemical used in this study..

Reactive azo dyes

Reactive azo dyes. (Sumitomo Chemical Co., Ltd., Japan). Jpn. Kokai Tokkyo Koho JP 59161463 A2 12 Sep 1984 Showa, 5 pp. (Japanese). (Japan). CODEN: JKXXAF. CLASS: IC: C09B062-51; D06P001-384. APPLICATION: JP 84-25662 13 Feb 1984.In this experiment, several chemicals are used like 67602-72-6 DOCUMENT TYPE: Patent CA Section: 41 (Dyes, Organic Pigments, Fluorescent Brighteners, and Photographic Sensitizers) The title dyes, yellow on cotton, were prepd. having a general formula of free-acid form I (R = Me, amino; R1, R2 = H, Cl, Me, MeO, carboxy, sulfo). Thus, 2-aminonaphthalene-3,6,8-trisulfonic acid di-Na salt [67602-72-6] was diazotized and coupled with m-acetamidoaniline [102-28-3]. Cyanuric chloride [108-77-0] was condensed with the resultant coupling product [93679-74-4] and then with m-H2NC6H4SO2CH2CH2OSO3H [2494-88-4] and salted to give I(R = Me; R1 = R2 = H; m-bonding; Na salt) [86278-21-9]. .