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Recording material comprising diphenyl sulfone derivative and novel diphenyl sulfone derivative compound

A technology for recording materials and diphenyl sulfone, applied in organic chemistry, replication/marking methods, printing, etc., can solve the problem of unknown color developer

Inactive Publication Date: 2005-12-14
NIPPON SODA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The use of the compounds described in the above-mentioned Patent Documents 1 to 4 is silver halide photosensitive materials for color photographs, and the compound described in Patent Document 5 is currently used as a raw material compound, but its use as a developer for recording materials is unknown.

Method used

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  • Recording material comprising diphenyl sulfone derivative and novel diphenyl sulfone derivative compound
  • Recording material comprising diphenyl sulfone derivative and novel diphenyl sulfone derivative compound
  • Recording material comprising diphenyl sulfone derivative and novel diphenyl sulfone derivative compound

Examples

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Synthetic example 1

[0063] Synthesis of Methyl 4-(4-Hydroxyphenylsulfonyl)phenoxyacetate (Compound No.1)

[0064] At normal temperature, add 50g (0.2mol) 4,4'-dihydroxydiphenyl sulfone, 27.6g (0.2mol) potassium carbonate, 100ml dimethyl sulfoxide to a 300ml 4-neck flask equipped with a stirrer and a thermometer. Warm up. Thereafter, 21.7 g (0.2 mol) of methyl chloroacetate was added, and the reaction was performed at 50 to 60° C. for 5 hours. After the reaction was completed, 200ml of water was added and extracted with MIBK. The MIBK layer was washed several times with 1% sodium carbonate aqueous solution to remove unreacted 4,4'-dihydroxydiphenylsulfone, MIBK was distilled off under reduced pressure, the precipitated crystals were filtered, and recrystallized from acetone and chloroform. 35.0 g methyl 4-(4-hydroxybenzenesulfonyl)phenoxyacetate. The yield was 54%, and the melting point was 159-161°C.

Synthetic example 2

[0066] Synthesis of 2-Hydroxyethyl 4-(4-Hydroxyphenylsulfonyl)phenoxyacetate (Compound No.3)

[0067] Except for replacing the methyl chloroacetate in Synthesis Example 1 with 2-hydroxyethyl chloroacetate, it was produced in the same manner as in Synthesis Example 1 to obtain 2-hydroxyethyl 4-(4-hydroxyphenylsulfonyl)phenoxyacetic acid ester.

Synthetic example 3

[0069] Synthesis of 2-phenoxyethyl 4-(4-hydroxyphenylsulfonyl)phenoxyacetate (Compound No.5)

[0070] Except for replacing methyl chloroacetate in Synthesis Example 1 with 2-phenoxyethyl chloroacetate, it was produced in the same manner as Synthesis Example 1 to obtain 4-(4-hydroxyphenylsulfonyl)phenoxyacetic acid 2- Phenoxyethyl ester.

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Abstract

To provide a recording material which is excellent in the preservability of the background, especially in the heat resistance and heat-and-moisture resistance of the background. Among the recording materials containing chromogenic dyes, it can be solved by a recording material characterized by containing at least one diphenylsulfone derivative represented by the general formula (I), wherein R1 and R2 represent hydrogen atoms or C1~ C6 alkyl, n represents an integer of 1 to 6, R3 and R4 represent a halogen atom, C1 to C6 alkyl, etc., p and q represent an integer of 0 to 4, X represents OR5 or NR6R7, R5 represents a C1 to C6 alkyl, C1~C6 hydroxyalkyl, C1~C6 alkoxy-C1~C6 alkyl, etc., R6 and R7 represent hydrogen atom, C1~C6 alkyl, etc.

Description

technical field [0001] The present invention relates to a recording material containing a diphenylsulfone derivative, which is excellent in background preservation, especially heat resistance and heat and humidity resistance of the background, and a novel diphenylsulfone derivative compound. Background technique [0002] Using a recording material that develops color by the reaction of a chromogenic dye and a color developer, it can be recorded in a short time with a relatively simple device without complicated processes such as developing and fixing. It is widely used in heat-sensitive recording paper for recording, pressure-sensitive copying paper for duplicating several tickets at the same time, and the like. As these recording materials, it is desired to develop color quickly, maintain the whiteness of the uncolored part (hereinafter referred to as "background"), and have high fastness of the color developed image. However, from high temperature drying using thermal pape...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41M5/155B41M5/333C07C317/22
CPCB41M5/155B41M5/323B41M5/3336C07C317/22
Inventor 肥高友也藤井博佐藤真一
Owner NIPPON SODA CO LTD