Detail of "3282-99-3"

Reference

Yellow disazo dye

Yellow disazo dye. (Fuji Photo Film Co., Ltd., Japan). Jpn. Kokai Tokkyo Koho JP 59102955 A2 14 Jun 1984 Showa, 8 pp. (Japanese). (Japan). CODEN: JKXXAF. CLASS: IC: C09B035-03. APPLICATION: JP 82-210642 2 Dec 1982. DOCUMENT TYPE: Patent CA Section: 41 (Dyes, Organic Pigments, Fluorescent Brighteners, and Photographic Sensitizers) 4,4'-Cyclohexylidenedianiline [3282-99-3] was diazotized, coupled with 1-(2-chloro-5-sulfophenyl)-3-methyl-5-pyrazolone Na salt [91917-26-9] in the presence of NaOH and NaOAc in water, and the disazo coupling product (Na salt) [91917-27-0] was treated with POCl3 in AcNMe2 to give the sulfonyl chloride deriv. [91917-28-1] which was treated with pyridine in AcNMe2 to give yellow I [91917-30-5], useful in color filters.

Dyes for micro color filters for solid-state color imaging devices

Dyes for micro color filters for solid-state color imaging devices. (Fuji Photo Film Co., Ltd., Japan). Jpn. Kokai Tokkyo Koho JP 59101607 A2 12 Jun 1984 Showa, 11 pp. (Japanese). (Japan). CODEN: JKXXAF. CLASS: IC: G02B005-20; C09B035-03. APPLICATION: JP 82-210641 2 Dec 1982. DOCUMENT TYPE: Patent CA Section: 41 (Dyes, Organic Pigments, Fluorescent Brighteners, and Photographic Sensitizers) The title dyes have the general formula I [R, R1 = (un)substituted alkyl, CF3, CONR9R10; R2, R3 = H, halogen, (un)substituted alkyl, alkoxy; R4, R5 = H, halogen, (un)substituted alkyl, alkoxy; R6, R7 = H, (un)substituted alkyl, or R6R7 = ring member; R8 = nonmetallic cation; R9 = H, (un)substituted alkyl; R10 = H, unsubstituted alkyl, aralkyl, aryl, or R9R10 = ring member with or without O; a, b, m, n, p, q = 1-4; m + n, p + q <5]. Thus, 4,4'-cyclohexylidenedianiline [3282-99-3] was tetrazotized and coupled with 1-(2-chloro-5-sulfophenyl)-3-methyl-5-pyrazolone Na salt [91917-26-9], the coupling product [72828-65-0] was treated with POCl3, and the resulting sulfonyl chloride [94246-45-4] in AcNMe2 was treated with pyridine and then water, stirred at room temp. for 8 h, and treated with water and HCl to obtain yellow I [R = R1 = Me; R2 = R3 = 2-Cl; R4 = R5 = H; R6R7 = (CH2)5; R8 = pyridinium (5-SO3R8)] [94246-44-3] which was used together with CuPc(SO3R)4 (Pc = phthalocyanine; R = pyridinium) [94346-81-3] in making a micro color filter.