Indolium compound and optical recording material containing the same
AssigneeAdeka Corporation
InventorsToru Yano, Yohei Aoyama
Life of this patent
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Abstract
A novel indolium compound of general formula (I) and an optical recording material containing the indolium compound. In general formula (I), ring A is a benzene ring, etc.; R1 is a group of general formula (II), etc.; R2 is a C1-C30 organic group, etc.; Y1 is a C1-C10 alkyl group, etc.; Z1 is, e.g., a C1-C8 alkyl group optionally substituted with a halogen group and optionally interrupted by —O—, etc.; Z2 is, e.g., a C1-C8 alkyl group optionally substituted with a halogen group and optionally interrupted by —O—, etc.; a is an integer of 0 to 6; b is an integer of 0 to 5; Anq- is a q-valent anion; q is 1 or 2; and p is a number necessary to neutralize an electric charge.
Claims5
An indolium compound represented by general formula (I):
- wherein ring A represents a benzene ring or a naphthalene ring;
- R1 represents a group represented by general formula (II) or (III);
- R2 represents an organic group having 1 to 30 carbon atoms or a group represented by general formula (II) or (III);
- Y1 represents a hydrogen atom, an alkyl group having 1 to 10 carbon atoms, an aryl group having 6 to 20 carbon atoms, or an arylalkyl group having 7 to 20 carbon atoms;
- Z1 represents an alkyl group having 1 to 8 carbon atoms optionally substituted with a halogen group and optionally interrupted by —O—, —CO—, —OCO—, or —COO—, a sulfonyl group having a hydrocarbon group having 1 to 8 carbon atoms, a sulfinyl group having a hydrocarbon group having 1 to 8 carbon atoms, an alkylamino group having an alkyl group containing 1 to 8 carbon atoms, a dialkylamino group having an alkyl group containing 1 to 8 carbon atoms, a group represented by general formula (III), a cyano group, a nitro group, a hydroxyl group, or a halogen group;
- Z2 represents an alkyl group having 1 to 8 carbon atoms optionally substituted with a halogen group and optionally interrupted by —O—, —CO—, —OCO—, or —COO—, a sulfonyl group having a hydrocarbon group having 1 to 8 carbon atoms, a sulfinyl group having a hydrocarbon group having 1 to 8 carbon atoms, a group represented by general formula (III), a cyano group, a nitro group, a hydroxyl group, or a halogen group;
- a plurality of Z2 substituents may be joined to form a ring structure;
- a represents an integer of 0 to 6;
- b represents an integer of 0 to 5;
- Anq- represents a q-valent anion;
- q represents 1 or 2;
- and p represents a number necessary to neutralize an electric charge,
- wherein the bond between G and T is a double bond, a conjugated double bond, or a triple bond;
- G represents a carbon atom;
- T represents a carbon atom, an oxygen atom, or a nitrogen atom;
- x, y, and z each represent 0 or 1, provided that, when T is oxygen, y=z=0, and, when T is nitrogen, y+z=0 or 1;
- w represents an integer of 0 to 4;
- R01, R02, R03, and R04 each independently represent a hydrogen atom, a hydroxyl group, a nitro group, a cyano group, a halogen atom, an alkyl group having 1 to 4 carbon atoms optionally substituted with a halogen atom, or an alkoxy group having 1 to 4 carbon atoms optionally substituted with a halogen atom;
- R01 and R04 may be joined to form a cycloalkene ring or a heterocyclic ring,
- wherein Ra, Rb, Rc, Rd, Re, Rf, Rg, Rh, and Ri each independently represent a hydrogen atom or an alkyl group having 1 to 4 carbon atoms a methylene moiety of which may be displaced by —O— or —CO—;
- Q represents a single bond or an optionally substituted alkylene group having 1 to 8 carbon atoms a methylene moiety of which may be displaced by —O—, —S—, —CO—, —COO—, —OCO—, —SO2—, —NH—, —CONH—, —NHCO—, —N═CH—, or —CH═CH—;
- and M represents Fe, Co, Ni, Ti, Cu, Zn, Zr, Cr, Mo, Os, Mn, Ru, Sn, Pd, Rh, Pt, or Ir.
Dependencies are inferred from the claim text.