C - Chemistry – Metallurgy – 09 – B
Patent
C - Chemistry, Metallurgy
09
B
C09B 47/10 (2006.01) C07D 487/22 (2006.01) C09B 47/06 (2006.01) C09B 47/073 (2006.01) G11B 7/24 (2006.01) G11B 7/248 (2006.01)
Patent
CA 2072261
The present invention is directed to a halogenated alkoxyphthalocyanine which is useful as a dye, a photoelectric functional material, a recording or memory material and particularly a.recording material for a writable recording medium (writable compact disks, CD- WO) as well as a method for preparing the halogenated alkoxyphthalocyanine as a mixture of several kinds of isomers in a high yield. There are provided a method for preparing a mixture of the halogenated alkoxyphthalocyanines represented by the formula (8) which comprises the step of reacting alkoxy- phthalocyanines represented by the formula (7) and a mixture thereof with a halogenating agent in a mixed solvent of an organic solvent and water, a mixture of compounds represented by the formula (8), and an optical recording medium using the same: Image (7) 142 (8) Image wherein each of R1 to R4 is independently an alkyl group which has 2 to 4 of the secondary, tertiary or quaternary carbon atoms and in which the total number of the carbon atoms is from 6 to 9; Met is a divalent metallic atom, a trivalent one-substituted metallic atom or a tetravalent two-substituted metallic atom; X is a halogen atom such as chlorine, bromine, or iodine; and n is the substitution number of X and it is from 1 to 4.
Aihara Shin
Enomoto Katashi
Itoh Hisato
Nishizawa Tsutomu
Oguchi Takahisa
Mitsui Chemicals Incorporated
Sim & Mcburney
Yamamoto Chemicals Incorporated
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