KR970042455A - How to prepare ortho-methallyloxyphenol - Google Patents

How to prepare ortho-methallyloxyphenol Download PDF

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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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KR
South Korea
Prior art keywords
catechol
catalyst
reaction solvent
ortho
base
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Application number
KR1019950069337A
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Korean (ko)
Inventor
이중환
박은정
이길성
Original Assignee
황선두
삼성종합화학 주식회사
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Priority to KR1019950069337A priority Critical patent/KR970042455A/en
Publication of KR970042455A publication Critical patent/KR970042455A/en

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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

오르토-메트알릴옥시페놀을 제조하는 방법How to prepare ortho-methallyloxyphenol

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

Claims (5)

카테콜과 메트알릴클로라이드를 촉매와 염기를 함유하는 반응 용매 중에서 가열반응시켜 오르토-메트알릴옥시페놀을 제조하는 방법에 있어서, 메틸이소부틸케논을 반응용매로 하고 크라운에테르를 포함하는 탄산계음이온기를 갖는 염기와 요드와칼륨 및 트리에틸아민을 촉매로 하여 90∼110℃에서 반응시켜 카테콜로부터 오르토-메트알릴클로라이드를 제조하는 방법.A method for producing ortho-methallyloxyphenol by heating a catechol and metallyl chloride in a reaction solvent containing a catalyst and a base, wherein the carbonic anionic group comprises methyl isobutyl kenone as a reaction solvent and a crown ether. A process for producing ortho-methallyl chloride from catechol by reacting a base having iodine with potassium and triethylamine as a catalyst at 90 to 110 캜. 제1항에 있어서, 요오드화칼륨을 카테콜 몰당 0∼0.01몰 범위로 사용하는 방법.The method of claim 1 wherein potassium iodide is used in the range of 0 to 0.01 mole per mole of catechol. 제1항에 있어서, 탄산계 음이온은 탄산나트륨, 탄산수소나트륨, 탄산칼륨, 탄산수소칼륨 중에서 선택된 1이상을 사용하는 것을 특징으로 하는 방법.The method of claim 1, wherein the carbonic anion is one or more selected from sodium carbonate, sodium bicarbonate, potassium carbonate and potassium bicarbonate. 제1항에 있어서 크라운에테르는 18-크라운-6 에테르인 방법The method of claim 1 wherein the crownether is 18-crown-6 ether 제1항에서 반응용매를 카테콜 몰당 850∼900㎖를 사용하는 방법The method of using a reaction solvent in 850 ~ 900ml per mole of catechol
KR1019950069337A 1995-12-30 1995-12-30 How to prepare ortho-methallyloxyphenol KR970042455A (en)

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KR970042455A true KR970042455A (en) 1997-07-24

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Citations (4)

* Cited by examiner, † Cited by third party
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

Patent Citations (4)

* Cited by examiner, † Cited by third party
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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