JP2007182521A5

JP2007182521A5 -

Info

Publication number: JP2007182521A5
Application number: JP2006003080A
Authority: JP
Filing date: 2006-01-10
Publication date: 2008-08-28

Description

（一般式（ＶＩＩＩ）〜（Ｘ）中、環Ａ_１０〜環Ａ_１３はそれぞれ独立に置換基を有しても良いベンゼン環又は置換基を有しても良いナフタレン環を表し、環Ｂ_７は置換基を有しても良い炭素数４〜８の脂肪族環又はヘテロ環を表し、Ｒ_２４〜Ｒ_２６はそれぞれ独立に置換基を有しても良いアルキル基又は置換基を有しても良いアラルキル基を表し、Ｘ_４〜Ｘ_６はそれぞれ独立に置換基を有しても良い１，１−ジアルキルメチレン基、置換基を有しても良い１−アルキル−１−ベンジルメチレン基、置換基を有しても良い１，１−ジベンジルメチレン基、または置換基を有しても良い炭素数３〜６のシクロアルカン−１，１−ジイル基を表し、Ｙは前記一般式（ＩＩＩ）と同じ意味を表す。Ｑ _２〜Ｑ_５はそれぞれ独立に水素原子或いはホルミル基を表す。但し、上記一般式（ＶＩＩ）中のＱ_１が水素原子である場合、Ｑ_２〜Ｑ_５はホルミル基であり、Ｑ_１がホルミル基である場合、Ｑ_２〜Ｑ_５は水素原子である。）
〔５〕基板上に少なくとも、有機色素を含有する記録層および反射層を有する光記録媒体であって、有機色素として前記〔１〕〜〔２〕のいずれかに記載のトリメチン化合物或いは前記〔３〕記載のトリメチン二量体化合物を少なくとも１種用いることを特徴とする光記録媒体。 (In General Formulas (VIII) to (X), Ring A ₁₀ to Ring A ₁₃ each independently represents a benzene ring which may have a substituent or a naphthalene ring which may have a substituent, and ring B _7. Represents an aliphatic ring or heterocyclic ring having 4 to 8 carbon atoms which may have a substituent, and R _{24 to} R ₂₆ each independently have an alkyl group or a substituent which may have a substituent. Represents a good aralkyl group, and X _{4 to} X ₆ are each independently a 1,1-dialkylmethylene group which may have a substituent, a 1-alkyl-1-benzylmethylene group which may have a substituent, It represents a 1,1-dibenzylmethylene group which may have a substituent, or a cycloalkane-1,1-diyl group having 3 to 6 carbon atoms which may have a substituent, and Y represents the above general formula ( represents the same meaning as III). _Q 2 ~Q ₅ is independently a hydrogen atom Represents a formyl group. However, when to _{Q 1} in the general formula (VII) is a hydrogen _atom, Q 2 to Q ₅ is a formyl group, if _{Q 1} is a formyl _group, Q 2 to Q ₅ Is a hydrogen atom.)
[5] An optical recording medium having at least a recording layer containing an organic dye and a reflective layer on a substrate, wherein the trimethine compound according to any one of [1] to [2] or [3] An optical recording medium comprising at least one of the trimethine dimer compounds described above.

Claims

Condensation of an indolenine compound represented by the following general formula (VII) and one selected from compounds represented by the following general formulas (VIII) to (X) using a dehydrating organic acid in the presence of a fatty acid salt A process for producing a trimethine compound according to claim 1 or 2 or a trimethine dimer compound according to claim 3.

(In Formula (VII), ring A ₉ represents a benzene ring which may have a substituent or a naphthalene ring which may have a substituent, and ring B ₆ has 4 carbon atoms which may have a substituent. Represents an aliphatic ring or a heterocyclic ring of 8 to 8, R ₂₂ and R ₂₃ each independently represents an alkyl group which may have a substituent or an aralkyl group which may have a substituent, and Q ₁ represents a hydrogen atom. Or a formyl group.)

(In General Formulas (VIII) to (X), Ring A ₁₀ to Ring A ₁₃ each independently represents a benzene ring which may have a substituent or a naphthalene ring which may have a substituent, and ring B _7. Represents an aliphatic ring or heterocyclic ring having 4 to 8 carbon atoms which may have a substituent, and R _{24 to} R ₂₆ each independently have an alkyl group or a substituent which may have a substituent. Represents a good aralkyl group, and X _{4 to} X ₆ are each independently a 1,1-dialkylmethylene group which may have a substituent, a 1-alkyl-1-benzylmethylene group which may have a substituent, It represents a 1,1-dibenzylmethylene group which may have a substituent, or a cycloalkane-1,1-diyl group having 3 to 6 carbon atoms which may have a substituent, and Y represents the above general formula ( represents the same meaning as III). _Q 2 ~Q ₅ is independently a hydrogen atom Represents a formyl group. However, when to _{Q 1} in the general formula (VII) is a hydrogen _atom, Q 2 to Q ₅ is a formyl group, if _{Q 1} is a formyl _group, Q 2 to Q ₅ Is a hydrogen atom.)