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Compounds and Compositions

A technology of compound and composition, applied in the field of compound and composition, can solve the problem of low dichroic ratio of polarizing film

Active Publication Date: 2019-10-01
SUMITOMO CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the dichroic ratio of the polarizing film containing the dichroic pigment is low

Method used

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  • Compounds and Compositions
  • Compounds and Compositions
  • Compounds and Compositions

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0313]

[0314] 1.00 g of the compound represented by the formula (2A), 4.00 g of water and 1.30 g of 35% hydrochloric acid were mixed. After cooling the obtained mixture to 0° C., 0.74 g of a 33% sodium nitrite aqueous solution was added dropwise. After stirring the obtained mixture for 30 minutes, 0.03 g of sulfamic acid was added. The obtained mixture was added dropwise to a mixture consisting of 0.74 g of the compound represented by the formula (3), 1.06 g of sodium acetate, and 7.44 g of water at 0°C. The precipitate was filtered and washed 3 times with water.

[0315] 0.32 g of sodium hydroxide and 8.00 g of water were added to the obtained precipitate. The obtained mixture was stirred at 100°C for 2 hours, and then cooled to 10°C. The precipitate was filtered and washed with water. The obtained solid was purified by silica gel column chromatography (eluent: toluene) after drying. The obtained solid was washed with acetonitrile and then dried to obtain 0.12 g of ...

Embodiment 2

[0321]

[0322] In Example 1, except that the compound represented by the formula (2B) was used instead of the compound represented by the formula (2A), it was carried out in the same manner as in Example 1, and the compound represented by the formula (1B) was obtained as an orange solid. (hereinafter referred to as compound (1B)) 0.020 g.

[0323] Mw: 399 (LC-MS)

[0324] Maximum Absorption Wavelength (λ max2 )=389nm (chloroform solution)

Embodiment 3

[0326]

[0327] In Example 1, except that the compound represented by the formula (2C) was used instead of the compound represented by the formula (2A), it was carried out in the same manner as in Example 1, and the compound represented by the formula (1C) was obtained as an orange solid. (hereinafter referred to as compound (1C)) 0.009 g.

[0328] Mw: 400 (LC-MS)

[0329] Maximum Absorption Wavelength (λ max2 )=399nm (chloroform solution)

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Abstract

A compound that functions as a dichroic dye and has an absorption maximum in the wavelength range of 350nm to 550nm. A compound represented by formula (1). In formula (1), R 1 Represents a hydrogen atom, etc., R 2 Represents an acyl group with 1 to 20 carbon atoms, etc., R 3 represents a hydrogen atom or the like, and Y represents a group represented by formula (Y1) or a group represented by formula (Y2). In formula (Y1), * represents a bonding site with N. In formula (Y2), * represents the bonding site with N, and P 1 and P 2 Each independently means ‑S‑ etc., Q 1 and Q 2 Each independently represents = N - etc.

Description

technical field [0001] The present invention relates to compounds and compositions. Background technique [0002] Patent Document 1 describes a polarizing film comprising a dichroic light-absorbing compound (dichroic dye) dispersed in an aligned polymerizable liquid crystal compound. [0003] Patent Document 2 describes a disazo dye having a 1,4-naphthyl structure as a dichroic dye having an absorption maximum at a wavelength of 350 to 550 nm. However, a polarizing film containing this dichroic dye has a low dichroic ratio. [0004] prior art literature [0005] patent documents [0006] Patent Document 1: Japanese National Publication No. 2007-510946 [0007] Patent Document 2: Japanese Patent No. 1454637 (Japanese Patent Publication No. 63-1357) Contents of the invention [0008] The problem to be solved by the invention [0009] A compound that functions as a dichroic dye and has an absorption maximum in a wavelength range of 350 nm to 550 nm is required. [0010...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C245/08C07D513/04C09K19/38G02B5/30G02F1/1335H01L51/50H05B33/02
CPCC07C245/08C07D513/04C09K19/2014C09K19/3068C09K19/3852C09K19/60C09K19/601G02B5/3033C09K2019/0448C09B31/043C09B31/062G02B5/3016H10K50/85H05B33/02G02F1/133528H10K50/868H10K50/86C09K19/38C09B56/00
Inventor 飞田宪之大川春树
Owner SUMITOMO CHEM CO LTD
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