KR970042455A - How to prepare ortho-methallyloxyphenol - Google Patents
How to prepare ortho-methallyloxyphenol Download PDFInfo
- Publication number
- KR970042455A KR970042455A KR1019950069337A KR19950069337A KR970042455A KR 970042455 A KR970042455 A KR 970042455A KR 1019950069337 A KR1019950069337 A KR 1019950069337A KR 19950069337 A KR19950069337 A KR 19950069337A KR 970042455 A KR970042455 A KR 970042455A
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- South Korea
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- catechol
- catalyst
- reaction solvent
- ortho
- base
- Prior art date
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
본 발명은 카테콜로부터 다음 구조식(1)의 오르토-메트알릴옥시페놀(ortho-methallyl-oxyphenol : 이하 'MOP'라 한다)을 제조하는 방법에 관한 것이다.The present invention relates to a method for preparing ortho-methallyl-oxyphenol (hereinafter, referred to as 'MOP') of the following structural formula (1) from catechol.
(1) (One)
구체적으로 카테콜과 메트알릴클로라이드를 촉매와 염기를 함유하는 반응 용매 중에서 가열반응시켜 오르토-메트알릴옥시페놀을 제조하는 방법에 있어서, 메틸이소부틸케톤을 반응용매로 하고, 크라운에테르를 포함하는 탄산계 음이온기를 갖는 염기와 요드화칼륨 및 트리에틸아민을 촉매로 하여 90∼110℃에서 반응시켜 카테콜로부터 오르토-메트알릴클로라이드를 제조하는 방법에 관한 것이다. 본 발명에 의하면 높은 수율에 의한 단위 배치당 생산성 향상의 효과와 더불어 에테르화 촉매인 요오드화 칼륨의 회수 공정이 필요하지 않아 공업적으로 유리하고 높은 전환율 및 높은 선택도로 7-OH를 제조하였다.Specifically, in a method for preparing ortho-methallyloxyphenol by heating catechol and metallyl chloride in a reaction solvent containing a catalyst and a base, carbonic acid containing methyl isobutyl ketone as a reaction solvent and a crown ether The present invention relates to a method for producing ortho-methallyl chloride from catechol by reacting a base having a series anionic group with potassium iodide and triethylamine as a catalyst at 90 to 110 ° C. According to the present invention, 7-OH was manufactured with industrially advantageous and high conversion rate and high selectivity since the recovery process of potassium iodide, which is an etherification catalyst, is not necessary as well as the effect of improving productivity per unit batch by high yield.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019950069337A KR970042455A (en) | 1995-12-30 | 1995-12-30 | How to prepare ortho-methallyloxyphenol |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019950069337A KR970042455A (en) | 1995-12-30 | 1995-12-30 | How to prepare ortho-methallyloxyphenol |
Publications (1)
Publication Number | Publication Date |
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KR970042455A true KR970042455A (en) | 1997-07-24 |
Family
ID=66639604
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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KR1019950069337A KR970042455A (en) | 1995-12-30 | 1995-12-30 | How to prepare ortho-methallyloxyphenol |
Country Status (1)
Country | Link |
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KR (1) | KR970042455A (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5813532A (en) * | 1981-07-17 | 1983-01-26 | Otsuka Chem Co Ltd | Preparation of ortho-methallyloxyphenol |
JPS58157738A (en) * | 1982-03-16 | 1983-09-19 | Otsuka Chem Co Ltd | Production of o-methallyloxyphenol |
US4465868A (en) * | 1981-07-17 | 1984-08-14 | Otsuka Kagaku Yakuhin Kabushiki Kaisha | Process for preparing o-methallyloxyphenol |
US4465867A (en) * | 1982-04-07 | 1984-08-14 | Otsuka Kagaku Yakuhin Kabushiki Kaisha | Process for preparing o-methallyloxyphenol |
-
1995
- 1995-12-30 KR KR1019950069337A patent/KR970042455A/en not_active Application Discontinuation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5813532A (en) * | 1981-07-17 | 1983-01-26 | Otsuka Chem Co Ltd | Preparation of ortho-methallyloxyphenol |
US4465868A (en) * | 1981-07-17 | 1984-08-14 | Otsuka Kagaku Yakuhin Kabushiki Kaisha | Process for preparing o-methallyloxyphenol |
JPS58157738A (en) * | 1982-03-16 | 1983-09-19 | Otsuka Chem Co Ltd | Production of o-methallyloxyphenol |
US4465867A (en) * | 1982-04-07 | 1984-08-14 | Otsuka Kagaku Yakuhin Kabushiki Kaisha | Process for preparing o-methallyloxyphenol |
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