Reference

Xanthene compounds

Xanthene compounds. (Mitsui Toatsu Chemicals, Inc., Japan). Jpn. Kokai Tokkyo Koho JP 60054381 A2 28 Mar 1985 Showa, 6 pp. (Japanese). (Japan). CODEN: JKXXAF. CLASS: ICM: C07D311-82. APPLICATION: JP 83-161891 5 Sep 1983. DOCUMENT TYPE: Patent CA Section: 41 (Dyes, Organic Pigments, Fluorescent Brighteners, and Photographic Sensitizers) Xanthene compds. I [R = NR3R4; R1-R4 = alkyl (or R1R2 and/or R3R4 = alkylene), cycloalkyl, aryl, haloaryl, alkaryl; R5-R10 = H, alkyl, alkoxy, NH2, alkylamino, halo; adjacent R may represent a fused ring] are prepd. and used as color formers in recording materials. Thus, 6'-chloro-3'-(diethylamino)-7'-methylfluoran [21121-64-2] was reduced (Zn/HCl) with ring opening to I (R = OH; R1 = R2 = Et; R8 = Cl; R9 = Me; R5 = R6 = R7 = R10 = H) [98257-17-1], which was then amidated with PhNHMe [100-61-8] to give I (R = NMePh; R1 = R2 = Et; R8 = Cl; R9 = Me; R5 = R6 = R7 = R10 = H) (II) [98257-16-0]. Heat-sensitive recording paper prepd. 21121-64-2 is just another one chemical used in this study. using II gave red images which showed no loss of intensity on contact with oils, fats, and plasticizers. .

Polyester fabric dyed with monoazo dyestuffs

Polyester fabric dyed with monoazo dyestuffs. Huffman, Allan M.; Wowk, Anatole (American Color and Chemical Corp., USA). U.S.Chemical with cas number 63407-40-9 also plays role. US 4026663 31 May 1977, 6 pp. (English). (United States of America). CODEN: USXXAM. CLASS: IC: C09B027-00. NCL: 008041000C. APPLICATION: US 75-547268 5 Feb 1975. DOCUMENT TYPE: Patent CA Section: 39 (Textiles) Arom. polyester fibers were dyed with azo dyes made by coupling an appropriate diazotized aminobenzene with a coupler prepd. by reacting 2-chloroacetyl chloride (I) [79-04-9] with N-alkyl-, N-cyanoalkyl-, or N-benzyl-substituted aminobenzenes. Thus, diazotized p-nitroaniline was coupled with 2-(N-methylanilino)-N-methylacetanilide [34066-47-2] (prepd. from I and N-methylaniline [100-61-8]) to yield the azo dye II [63407-42-1]. Type 54 Dacron polyester fabric was treated in a bath contg. 0.4% II and appropriate additives for 10 min at 120.degree.C and 1 h at 205.degree.F to give a fabric with a bright yellowish red color that was resistant to sublimation at 400.degree.F. .