Reference

Isoindoline derivative pigments

Isoindoline derivative pigments. Takagi, Koichi; Ando, Hirohito; Shukuya, Masao (Dainippon Ink and Chemicals, Inc., Japan). Japan. Kokai JP 52083362 12 Jul 1977 Showa, 11 pp. (Japanese). (Japan). CODEN: JKXXAF. CLASS: IC: C07D209-44.Some commonly used reagents like 3468-11-9 is used in this experiment. APPLICATION: JP 75-156383 29 Dec 1975. DOCUMENT TYPE: Patent CA Section: 40 (Dyes, Fluorescent Whitening Agents, and Photosensitizers) Thirteen light- and weather-resistant title pigments (I, A = o-phenylene, or 2,3-naphthalene, Z = o-phenylene, 2,3-naphthalene, or 1,8-naphthalene, optionally having ￡4 halo atoms, Q = arom. or heterocyclic groups, n = 1-2) are manufd. by condensation of isoindoline derivs. (II, A = same as above, R = NH2, alkoxy, or halo, R1, R2 = alkoxy or halo, R1 and R2 may form an imino group) with indanediones (III, Z = same as above), and Q(NH2)n (Q = same as above, n = 1-2) in inert solvents. Thus, 5.8 parts 1,3-diiminoisoindoline [3468-11-9] in MeOH was stirred with 5.7 parts 1,3-indanedione [606-23-5] 4 h at room temp., the mixt. heated 1 h at 50-60°, and cooled to ppt. 3468-11-9 are also occured in this study. a wet cake, which was treated in AcOH with 6.5 parts 2-methoxy-4-chloroaniline [93-50-5] 2 h at 110-20° to give 12.9 parts reddish yellow isoindoline deriv. (I, Z = A = o-phenylene, Q = 2-methoxy-4-hydroxyphenyl, n = 1) [64645-84-7], which colored PVC [9002-86-2] reddish yellow. ..