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Complex compound and optical recording medium containing same

A technology of coordination compounds and protons, which is applied to optical record carriers, recording/reproducing by optical methods, data recording, etc., can solve the problems of insufficient moisture and heat resistance and other characteristics, and achieve the effect of excellent moisture and heat resistance.

Inactive Publication Date: 2013-03-27
KH NEOCHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these compounds have insufficient properties such as moisture and heat resistance.

Method used

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  • Complex compound and optical recording medium containing same
  • Complex compound and optical recording medium containing same
  • Complex compound and optical recording medium containing same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0176] Hereinafter, the present invention will be described in more detail through synthesis examples, working examples, and test examples.

[0177] The description of the abbreviations is as follows.

[0178] TFP: 2,2,3,3-Tetrafluoropropanol

[0179] DMSO: dimethyl sulfoxide

[0180] [Manufacture of raw materials for compound (I)]

[0181] 1-Butyl- 3-cyano-4-methyl-2,6-dioxo-1,2,5,6-tetrahydropyridine. In the same manner as the production method of 1-butyl-3-cyano-4-methyl-2,6-dioxo-1,2,5,6-tetrahydropyridine, 3-cyano-1-iso Butyl-4-methyl-2,6-dioxo-1,2,5,6-tetrahydropyridine, 3-cyano-1-furfuryl-4-methyl-2,6-dioxo -1,2,5,6-tetrahydropyridine, 3-cyano-4-methyl-2,6-dioxo-1-(p-tolyl)-1,2,5,6-tetrahydropyridine , 1-butyl-3-cyano-2,6-dioxo-4-propyl-1,2,5,6-tetrahydropyridine, and 1-benzyl-3-cyano-4-methanol Base-2,6-dioxo-1,2,5,6-tetrahydropyridine. 3-cyano-1-ethyl-4-methyl-2,6-dioxo-1,2,5,6-tetrahydropyridine was obtained as a commercial item (manufactured by Sigma-Aldrich...

Synthetic example 1

[0191] Synthesis Example 1: Production of Compound (I-1)

[0192]1-Butyl-3-cyano-5-(N,N-dimethylaminomethylene)-4-methyl-2,6-dioxo-1,2,5,6-tetrahydro 1.50 g of pyridine, 1.05 g of acetic acid, 1.01 g of 5-hydrazino-1-phenyl-1H-tetrazole, and 15 ml of ethanol were mixed, and stirred at 70° C. for 1 hour. The reaction mixture was cooled to room temperature, 20 ml of water was added to the reaction mixture, the precipitated solid was collected by filtration, washed with a mixed solvent of water and ethanol (volume ratio 1:1), and dried to obtain compound (I-1) 1.47g (65% yield).

[0193] 1 H-NMR(400MHz)δ(DMSO-d 6 )ppm: 0.90(3H,t,J=7.3Hz), 1.25-1.30(2H,m), 1.46-1.51(2H,m), 2.35(3H,s), 3.83(2H,t,J=7.3Hz ), 7.56-7.67 (5H, m), 8.38 (1H, s).

Synthetic example 2

[0194] Synthesis Example 2: Production of Compound (I-2)

[0195] 3-cyano-5-(N,N-dimethylaminomethylene)-1-ethyl-4-methyl-2,6-dioxo-1,2,5,6-tetrahydro 0.50 g of pyridine, 1.05 g of acetic acid, 0.24 g of 2-hydrazinopyrimidine, and 5 ml of methanol were mixed and stirred at room temperature for 30 minutes. The precipitated solid was collected by filtration, washed with methanol, and then dried to obtain 0.61 g of compound (I-2) (95% yield).

[0196] 1 H-NMR(400MHz)δ(DMSO-d 6 )ppm: 1.10(3H,t,J=7.1Hz), 2.40(3H,s), 3.88-3.93(2H,m), 6.95(1H,bs), 8.36(1H,s), 8.54(2H,bs ), 11.13 (1H, bs).

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Abstract

The present invention provides a complex compound and the like having excellent resistance to moist heat or the like and which is used for an optical recording medium, and which comprises: a compound represented by general formula (I) [In the formula, R1 represents an optionally substituted alkyl group or the like, R2 represents a cyano group or the like, R3 represents an optionally substituted alkyl group or the like, R4 represents a hydrogen atom or the like, and R5 represents formula (III)(in the formula, ring A represents an optionally substituted heterocyclic ring, and the heterocyclic ring is selected from a pyrimidine ring, a tetrazole ring, etc.) or the like]; metal; and one type selected from a group consisting of an ion generated by one or more protons being added to an amine, an ammonium ion and a quarternary ammonium ion.

Description

technical field [0001] The present invention relates to complex compounds and the like used for optical recording media and the like. Background technique [0002] In recent years, the development of optical recording media that realizes ultra-high-density recording has been further advanced by using techniques for increasing the numerical aperture NA of the objective lens, techniques for reducing the laser wavelength λ, and the like. For example, in order to record HDTV (High Definition Television) screen information for 2 hours or more, an optical recording medium having a capacity of at least 23 GB or more in the same size as a DVD is required. In response to such a request, an optical recording medium, the so-called Blu-ray Disc (BD), has been developed. By using a blue-violet laser and setting the NA of the objective lens to 0.85 to reduce the diameter of the laser focus, it is possible to record more high density of information. [0003] Pigments used in optical reco...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D213/85C07D401/12C07D413/12C07D413/14C09B55/00C09B57/10G11B7/244G11B7/2495G11B7/259
CPCC07D487/08C07D413/14C07C211/63C07C211/08C07D213/85C09B26/02C07D217/10C07D413/12C07D213/22C07D257/04C07D215/10C07D401/12C09B69/04G11B7/259C07D471/14C07D491/147G11B7/2495C07C211/05C07D471/16C07C211/07
Inventor 泽田贵弘折见崇行冲村尚志宫崎常昭森山聪
Owner KH NEOCHEM CO LTD