KR970006272A - New manufacturing method of UV absorber - Google Patents

New manufacturing method of UV absorber Download PDF

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Publication number
KR970006272A
KR970006272A KR1019950020626A KR19950020626A KR970006272A KR 970006272 A KR970006272 A KR 970006272A KR 1019950020626 A KR1019950020626 A KR 1019950020626A KR 19950020626 A KR19950020626 A KR 19950020626A KR 970006272 A KR970006272 A KR 970006272A
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KR
South Korea
Prior art keywords
carbon atoms
benzene
substituted
positions
formula
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KR1019950020626A
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Korean (ko)
Inventor
김찬우
채헌승
김기석
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이웅열
주식회사 코오롱
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Priority to KR1019950020626A priority Critical patent/KR970006272A/en
Publication of KR970006272A publication Critical patent/KR970006272A/en

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Abstract

본 발명은 일반식 (Ⅱ)의 디아릴케톤과 일반식 (Ⅲ)의 시아노아세트란 에스테르를 반응시켜서 구조식(Ⅰ)의 치환된 페닐신남산 에스테르를 제조함에 있어서, 별도의 유기용매의 사용없이, 소듐 메톡사이드, 소듐 에톡사이드 및 소듐 히드라이드에서 선택된 유기금속촉매의 존재하에 120~170℃의 온도에서 불활성개스를 버블링시키면서 축하반응을 행하여 묵적화합물을 제조하는 방법을 제공하는 것이며, 본 발명의 방법으로 고순도, 고수율 및 저렴하게 목적화합물을 제조할 수 있다.The present invention reacts the diaryl ketone of the general formula (II) with the cyanoacelan ester of the general formula (III) to prepare the substituted phenyl cinnamic acid ester of the structural formula (I), without using an additional organic solvent. In the presence of an organometallic catalyst selected from sodium methoxide, sodium ethoxide and sodium hydride, it is to provide a method for producing a silent compound by the banung reaction while bubbling an inert gas at a temperature of 120 ~ 170 ℃, the present invention By the method of high purity, high yield and inexpensive the target compound can be prepared.

상기 식에서 Ar은 벤젠, 탄소수 1~3의 저금알킬로 1 내지 3위치가 치환된 벤젠, 1~3의 할로겐으로 치환된 벤젠 또는 탄소수 1~4의 저급알콕시기로 1 내지 3의 위치가 치환된 벤젠을 의미하며, R은 탄소수 1~17의 직쇄 또는 분지쇄의 알킬기이다.Wherein Ar is benzene, benzene substituted at 1 to 3 positions with lower alkyl having 1 to 3 carbon atoms, benzene substituted at 1 to 3 halogen, or benzene substituted at 1 to 3 positions with lower alkoxy group having 1 to 4 carbon atoms R is a linear or branched alkyl group having 1 to 17 carbon atoms.

Description

자외선 흡수물질의 신규제조방법New manufacturing method of UV absorber

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

Claims (2)

다음 구조식 (Ⅱ)의 디아릴케톤과 구조식 (Ⅲ)의 시아노아세트란 에스테르를 반응시켜서 구조식(Ⅰ)의 치환 신남산에스테르를 제조함에 있어서, 별도의 유기용매의 사용없이, 유기금속촉매의 존재하에 120~170℃의 온도에서 불활성 개를 버블링시키면서 축합반응시켜서 구조식(Ⅰ)의 치환 신남산 에스테르를 제조하는 방법.In the preparation of substituted cinnamic acid ester of formula (I) by reacting the diaryl ketone of formula (II) with the cyanoacelan ester of formula (III), the presence of an organometallic catalyst without the use of an organic solvent A condensation reaction is carried out while bubbling an inert dog at a temperature of 120 to 170 ° C. to prepare a substituted cinnamic acid ester of the structural formula (I). 상기 식에서 Ar은 벤젠, 탄소수 1~3의 저금알킬로 1 내지 3위치가 치환된 벤젠, 1~3의 할로겐으로 치환된 벤젠 또는 탄소수 1~4의 저급알콕시기로 1 내지 3의 위치가 치환된 벤젠을 의미하며, R은 탄소수 1~17의 직쇄 또는 분지쇄의 알킬기를 의미한다.Wherein Ar is benzene, benzene substituted at 1 to 3 positions with lower alkyl having 1 to 3 carbon atoms, benzene substituted at 1 to 3 halogen, or benzene substituted at 1 to 3 positions with lower alkoxy group having 1 to 4 carbon atoms R means a linear or branched alkyl group having 1 to 17 carbon atoms. 제1항에서 유기금속촉매로, 소듐 메톡사이드, 소듐에톡사이드, 소듐 히드라이드에서 선택된 유기금속촉매를 사용하는 방법.The method of using an organometallic catalyst selected from sodium methoxide, sodium ethoxide, sodium hydride as the organometallic catalyst in claim 1. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950020626A 1995-07-13 1995-07-13 New manufacturing method of UV absorber KR970006272A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950020626A KR970006272A (en) 1995-07-13 1995-07-13 New manufacturing method of UV absorber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950020626A KR970006272A (en) 1995-07-13 1995-07-13 New manufacturing method of UV absorber

Publications (1)

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KR970006272A true KR970006272A (en) 1997-02-19

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KR1019950020626A KR970006272A (en) 1995-07-13 1995-07-13 New manufacturing method of UV absorber

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