Reference

Synthesis of 4-N-acetyl-2,4-tolylenediamine and its azo disperse dye derivatives

Synthesis of 4-N-acetyl-2,4-tolylenediamine and its azo disperse dye derivatives. Urseanu, F.; Floru, L.; Tarabasanu-Mihaila, C.; Enescu, D. (Lab. Tehnol. Intermediarilor Aromat. Color., Inst. Politeh. "Gheorghe Gheorghiu-Dej", Bucharest, Rom.). Bul. Inst. Politeh. "Gheorghe Gheorghiu-Dej" Bucuresti, Ser. Chim.-Metal., 39(4), 65-70 (Romanian) 1977. CODEN: BPGCDL. DOCUMENT TYPE: Journal CA Section: 40 (Dyes, Fluorescent Whitening Agents, and Photosensitizers) Section cross-reference(s): 25 4,2-AcNH(H2N)C6H3Me (I) [6375-16-2] was prepd. from 4-H2NC6H4Me [106-49-0] by nitration of its sulfate salt at -10° and treatment with NH3 to obtain 4,2-H2N(O2N)C6H3Me (II) [119-32-4], acetylation of II with Ac2O at 60-70° to 4,2-AcNH(O2N)C6H3Me (III) [2719-14-4], and redn. 6375-16-2 which is the cas registry number of one of substances is just one of reagents here. of III with cast iron powder in the presence of Fe acetate catalyst. Coupling of I with the diazonium salts of 4-O2NC6H4NH2 [100-01-6], 2,4-Cl(O2N)C6H3NH2 [121-87-9], 2,4-Cl2C6H3NH2 [554-00-7], 2,5-MeO(Et2NSO2)C6H3NH2 [97-35-8], 4,2-Cl(O2N)C6H3NH2 [89-63-4], 4,2-H2N(O2N)C6H3Me, 2,5-Cl2C6H3NH2 [95-82-9], and 2,4-H2N(O2N)C6H3OMe [99-59-2] gave the corresponding azo dyes (IV, R = substituted phenyl) with good tinctorial characteristics for polyester fibers. The dyes (in the same order) had max. spectral absorption at 506, 530, 480, 470, 474, 470, 482, and 524 nm in DMF. .

Pigmentation of high-molecular-weight organic material

Pigmentation of high-molecular-weight organic material. Hari, Stefan; Cseh, Georg; Roueche, Armand (Ciba-Geigy A. 9002-86-2 is just another one chemical used in this study.-G., Switz.). Ger. Offen. DE 2739041 9 Mar 1978, 20 pp. (German). (Germany). CODEN: GWXXBX. CLASS: IC: C08J003-20. PRIORITY: CH 76-11136 2 Sep 1976. DOCUMENT TYPE: Patent CA Section: 39 (Textiles) Disazo pigments (I, R = H, Cl, C1-6 alkyl or alkoxy, NO2, CF3; R1 = C1-6 alkyl) are prepd. and used to color PVC [9002-86-2], polystyrene [9003-53-6], polyethylene [9002-88-4], polypropylene [9003-07-0], polyesters, alkyd resins, and stoving enamels fast orange shades. 9002-86-2 is the cas registry number. This chemical is also mentioned in this article. Thus, 2,5-dichloroaniline [95-82-9] was diazotized and coupled with 2,5-diethoxy-1,4-bis(acetoacetylamino)benzene [66487-21-6] to give (I, R = Cl, R1 = OEt; Cl groups in 2 and 5 position) [66487-22-7]. ..