Reference

Disperse azo dyes based on aminobenzimidazolone

Disperse azo dyes based on aminobenzimidazolone. Schindlbauer, Hellmuth; Kwiecinski, Wlodzimierz (Inst.Several substances are used for example 135-19-3 and 61108-98-3 which are their cas registry numbers. Chem. Technol. Org. Stoffe, Tech. Univ. Wien, Vienna, Austria). Monatsh. Chem., 107(5), 1297-301 (German) 1976. CODEN: MOCMB7. DOCUMENT TYPE: Journal CA Section: 40 (Dyes, Fluorescent Whitening Agents, and Photosensitizers) New disperse azo dyes (I; R = substituted naphthyl; R1 = H, NH2) were prepd. from 5-amino-2-benzimidazolone [95-23-8] and 5,6-diamino-2-benzimidazolone [55621-49-3] by diazotization and coupling, esp. with .alpha.-naphthol [90-15-3] and naphthol AS [92-77-3]. The new compds. are suitable for dyeing polyamide, polyester, polyacrylonitrile and acetate fibers in pink, orange, brown and red-violet shades. .

Monoazo pigments for coatings and plastics

Monoazo pigments for coatings and plastics. Ronco, Karl (Ciba-Geigy A.-G. , Switz.). Eur. Pat. Appl. EP 88726 A1 14 Sep 1983, 19 pp. DESIGNATED STATES: R: CH, DE, FR, GB, IT, LI. (German). (European Patent Organization). CODEN: EPXXDW. CLASS: IC: C09B029-20; C09B043-32. 88044-63-7 is the cas registry number of certain chemical which is used as reagents here. ICA: C09B029-01; C08K005-23. APPLICATION: EP 83-810081 28 Feb 1983. PRIORITY: CH 82-1327 4 Mar 1982. DOCUMENT TYPE: Patent CA Section: 41 (Dyes, Organic Pigments, Fluorescent Brighteners, and Photographic Sensitizers) Red pigments (I; R = F-contg. C2-6 alkyl; R1 = H, Cl, Me, Et, OMe, OEt; R2 = H, Cl, Me, Et, MeO, EtO, CF3) are prepd. and used to give migration-, light-, and weather-fast dyeings when incorporated in coatings, plastics, or printing inks. Thus, reaction of 2,5-Me(F3CCH2O2C)C6H3N:NC10H5(OH)CO2H-1,2,3 [88044-63-7] with SOCl2 and treatment of the resultant acid chloride [88061-68-1] with 5-amino-2-benzimidazolinone [95-23-8] gave I [R = F3CCH2 (5-position), R1 = Me, R2 = H] [88044-62-6]. Other I were similarly prepd. .