New cobalt (III) phthalocyanine compounds are useful as light absorbing compounds for optical data storage

摘要

New cobalt (III) phthalocyanine compounds are claimed. Cobalt (III) phthalocyanine compounds of formula (1) are new. Halogen = chlorine, bromine or fluorine; R7, R8 = alkylamino, hydroxyalkylamino-, dialkylamino, bis hydroxyalkylamino, arylamino or R7 and R8 together with the N atom they are bonded to form a 5-7 membered ring, optionally containing other hetero atoms, preferably O, N and S whereby NR7R8 is preferably pyrrolidine, piperidine or morpholine; alkoxy = 1-6C alkoxy, optionally substituted; Co+Pc = cobalt (III) phthalocyanine; L1, L2 = an amine, NR0R1R2 or isonitrile of formula (2); R0-R2 = H, alkyl, cycloalkyl, alkenyl, aryl or heteroaryl or two of R0-R2 together with the N atom they are bonded to form an at least partially hydrogenated, quasiaromatic or aromatic ring, preferably 5-7 membered, optionally containing other hetero atoms, preferably N, O and/or S; An- = anion. Independent claims are included for: (1) process for the production of compounds of formula (1) by oxidation of a cobalt-phthalocyanine, substituted wit SO2NR7R8 and optionally halogen and/or alkoxy, and reaction with amines L1 and L2; (2) optical data carrier comprising a transparent substrate having light-writeable information layer and optionally a reflective layer, optionally intermediate layers and/or optionally a protective layer whereby the information layer contains at least one cobalt-phthalocyanine dye of formula (3); (3) process for the production of the optical data carrier by coating the cobalt phthalocyanine complex of formula (3), optionally in combination with suitable binders additives and solvents onto a transparent substrate optionally followed by reflective layer, optionally other intermediate layers and optionally a protective layer. R = alkyl, cycloalkyl, alkenyl, aryl or heteroaryl; R3-R6 = halogen, cyano, nitro, alkyl, aryl, alkylamino, dialkylamino, alkoxy, alkylthio, aryoxy, arylthio, SO3H, SO2NR1R2, CO2R9, CONR1R2, NH-COR7 or -(B)m-D; B = bridging member comprising a direct bond, CH2, CO, CH(alkyl), C(alkyl)2, NH, S, O or -CH=CH-; m = 1-10 (1-4); D = formula (4) or (5) or a metallocenyl or metallocenylcarbonyl having titanium, manganese, iron, ruthenium or osmium metal center; X1, X2 = NR'R, OR or SR; Y1 = NR1, O or S; Y2 = NR1; n = 1-10; R',R = H, alkyl, cycloalkyl, aryl or heteroaryl or form a direct bond or a bridge to a C atom of a -(CH=CH)n- and/or =(CH-CH)n= chain; w, x, y, z = 0-12; w+x+y+z = greater than or equal to 12; R7,R8 = alkylamino, hydroxyalkylamine, dialkylamine, bis hydroxyalkylamine, arylamine or R7 and R8 together with the N atom they are bonded to form a 5-7 membered heterocyclic ring, optionally containing other heteroatoms, preferably O, N or S, whereby NR7R8 is pyrrolidine, piperidine or morpholine; R12 = alkyl, aryl, heteroaryl or H.