Detail of "100-13-0"

Reference

Disazo compounds

Disazo compounds. (Asahi Glass Co., Ltd., Japan). Jpn. Kokai Tokkyo Koho JP 58136658 A2 13 Aug 1983 Showa, 5 pp. (Japanese). (Japan). CODEN: JKXXAF. CLASS: IC: C09B035-34. APPLICATION: JP 82-18232 9 Feb 1982. DOCUMENT TYPE: Patent CA Section: 41 (Dyes, Organic Pigments, Fluorescent Brighteners, and Photographic Sensitizers) Section cross-reference(s): 74 I (R = alkyl, alkoxy, nitro, dialkylamino, halo; n = 0-3), useful in photoconductors in electrophotog.There are some commonly used reagents with their cas registry numbers 31574-87-5 and 92-75-1 in this article., were prepd. Thus, 2,8-dibromodibenzothiophene [31574-87-5] was treated with 4-nitrostyrene [100-13-0] in the presence of Bu3N, Pd acetate, and tri-o-tolylphosphine in DMF at 100° for 3 h to give 2,8-bis(4-nitrostyryl)dibenzothiophene [88341-66-6] which has reduced (Fe/HCl) to give 2,8-bis(4-aminostyryl)dibenzothiophene (II) [88341-67-7]. II was tetrazotized and coupled with Naphthol AS-MX [92-75-1] to give I (Rn = 2,4-Me2) [88341-68-8]. .

Disazo compound

Disazo compound. (Asahi Glass Co., Ltd., Japan). Jpn. Kokai Tokkyo Koho JP 58129060 A2 1 Aug 1983 Showa, 6 pp. (Japanese). (Japan). CODEN: JKXXAF. CLASS: IC: C09B035-34; G03G005-06. APPLICATION: JP 82-11898 29 Jan 1982. DOCUMENT TYPE: Patent CA Section: 41 (Dyes, Organic Pigments, Fluorescent Brighteners, and Photographic Sensitizers) Section cross-reference(s): 74 I [88341-65-5], useful in photoconductors in electrophotog.There are some commonly used reagents with their cas registry numbers 88341-63-3 and 1637-16-7 in this article., was prepd. Thus, 10-ethylphenothiazine [1637-16-7] was brominated with Br in AcOH to give 3,7-dibromo-10-ethylphenothiazine [34964-71-1] which was treated with 4-nitrostyrene [100-13-0] in the presence of Bu3N, Pd acetate, and tri-o-tolylphosphine in DMF at 100° for 5 h to give 3,7-bis(4-nitrostyryl)-10-ethylphenothiazine [88341-63-3]. This product was reduced (Fe/HCl) to give 3,7-bis(4-aminostyryl)-10-ethylphenothiazine [88341-64-4] which was then tetrazotized and coupled with Naphthol AS-MX [92-75-1] to give I. .