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JPH0441139B2 - - Google Patents
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JPH0441139B2 - - Google Patents

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Publication number
JPH0441139B2
JPH0441139B2 JP14619983A JP14619983A JPH0441139B2 JP H0441139 B2 JPH0441139 B2 JP H0441139B2 JP 14619983 A JP14619983 A JP 14619983A JP 14619983 A JP14619983 A JP 14619983A JP H0441139 B2 JPH0441139 B2 JP H0441139B2
Authority
JP
Japan
Prior art keywords
parts
formula
general formula
compound
lower alkyl
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
JP14619983A
Other languages
Japanese (ja)
Other versions
JPS6036449A (en
Inventor
Masao Nishikuri
Kingo Akahori
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sumitomo Chemical Co Ltd
Original Assignee
Sumitomo Chemical Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sumitomo Chemical Co Ltd filed Critical Sumitomo Chemical Co Ltd
Priority to JP14619983A priority Critical patent/JPS6036449A/en
Publication of JPS6036449A publication Critical patent/JPS6036449A/en
Publication of JPH0441139B2 publication Critical patent/JPH0441139B2/ja
Granted legal-status Critical Current

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

【発明の詳細な説明】 本発明はフエノール誘導体の改良された製造方
法に関する。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improved method for producing phenol derivatives.

一般式() (式中、Rは低級アルキル基、Xはハロゲン原
子を表わす) で示される化合物は感圧および感熱色素の中間体
として有用な化合物である。すなわち、一般式
()の化合物をアルキル化し、次いでハロゲノ
ベンゼン誘導体と反応させることにより、一般式
() 〔式中、R,Xは前記と同じ意味を表わし、
R1は低級アルキル基、Yは水素原子、低級アル
キル基、低級アルコキシ基またはハロゲン原子、
nは1〜3の整数を表わす。〕 で示されるジフエニルアミン誘導体とし、これを
たとえば、2−(4′−ジエチルアミノ−2′−ヒド
ロキシベンゾイル)安息香酸などのベンゾフエノ
ン誘導体と反応させることにより、感圧および感
熱色素を有利に合成することができる。
General formula () (In the formula, R represents a lower alkyl group and X represents a halogen atom.) The compound represented by the following formula is a compound useful as an intermediate for pressure-sensitive and heat-sensitive dyes. That is, by alkylating a compound of general formula () and then reacting it with a halogenobenzene derivative, a compound of general formula () can be obtained. [In the formula, R and X represent the same meanings as above,
R 1 is a lower alkyl group, Y is a hydrogen atom, a lower alkyl group, a lower alkoxy group or a halogen atom,
n represents an integer from 1 to 3. ] Pressure-sensitive and heat-sensitive dyes can be advantageously synthesized by reacting diphenylamine derivatives represented by the formula with benzophenone derivatives such as 2-(4'-diethylamino-2'-hydroxybenzoyl)benzoic acid. can.

一般式()で表わされる化合物、たとえば3
−クロル−4−アセトアミドフエノールは、3−
クロル−4−アセトアミドフエネトールをベンゼ
ン中、塩化アルミニウムと処理することにより得
られる(J.C.S.107,939)が、この方法は、塩化
アルミニウムを多重に使用し、有利な製法とはい
えない。
A compound represented by the general formula (), for example 3
-Chloro-4-acetamidophenol is 3-
It is obtained by treating chloro-4-acetamidophenethole with aluminum chloride in benzene (JCS 107 , 939), but this method requires multiple use of aluminum chloride and is not an advantageous process.

本発明者らは、一般式() (式中、R,Xは前記の意味を有する) で示される化合物の加水分解による製法について
鋭意検討した結果、水性媒体中、アルカリと処理
することにより、アシルオキシ基のみが選択的に
加水分解され、高収率で一般式()の化合物を
得ることができることを見い出し本発明を完成し
た。
The inventors have proposed the general formula () (In the formula, R and They discovered that the compound of general formula () can be obtained in high yield and completed the present invention.

すなわち、本発明は、一般式() (式中、Rは低級アルキル基、Xはハロゲン原
子を表わす) で示される化合物を水性媒体中、アルカリと処理
することを特徴とする一般式() (式中、X,Bは前記の意味を有する) で示されるフエノール誘導体の製造方法である。
That is, the present invention provides the general formula () (In the formula, R represents a lower alkyl group and X represents a halogen atom) A general formula () characterized by treating a compound represented by the following with an alkali in an aqueous medium. (In the formula, X and B have the above-mentioned meanings.) This is a method for producing a phenol derivative represented by the following formula.

一般式()において、Rで表わされる低級ア
ルキル基としては、メチル基、エチル基、n−プ
ロピル基、i−プロピル基、n−ブチル基、i−
ブチル基等があげられ、Xとしては塩素原子、臭
素原子があげられる。
In the general formula (), the lower alkyl group represented by R includes methyl group, ethyl group, n-propyl group, i-propyl group, n-butyl group, i-
Examples include a butyl group, and examples of X include a chlorine atom and a bromine atom.

水性媒体としては、水または水と、メタノー
ル、エタノール、プロパノール、ベンゼン、トル
エン、キシレン、モノクロルベンゼン、ジクロル
ベンゼン、ニトロベンゼン、トリクロルエチレ
ン、テトラクロルエチレン、メチルエチルケト
ン、ジメチルホルムアミド、ジメチルスルホキシ
ド、ホルムアミド、N−メチルピロリドン、スル
ホラン、クロロホルム、四塩化炭素などの有機溶
剤との混合物であつてもよい。
Examples of the aqueous medium include water or water and methanol, ethanol, propanol, benzene, toluene, xylene, monochlorobenzene, dichlorobenzene, nitrobenzene, trichlorethylene, tetrachlorethylene, methyl ethyl ketone, dimethylformamide, dimethyl sulfoxide, formamide, N- It may also be a mixture with an organic solvent such as methylpyrrolidone, sulfolane, chloroform, or carbon tetrachloride.

アルカリとしては、苛性ソーダ、苛性カリ、炭
酸ソーダ、炭酸カリ、重炭酸ソーダ、重炭酸カ
リ、水酸化カルシウム、水酸化マグネシウムなど
があげられる。その使用量は、原料化合物に対し
1当量以上、好ましくは1−5当量である。特に
好ましいのは、アルカリ金属の水酸化物、炭酸塩
である。
Examples of the alkali include caustic soda, caustic potash, soda carbonate, potassium carbonate, bicarbonate of soda, potassium bicarbonate, calcium hydroxide, and magnesium hydroxide. The amount used is 1 equivalent or more, preferably 1-5 equivalents, based on the raw material compound. Particularly preferred are alkali metal hydroxides and carbonates.

反応温度は0−100℃、好ましくは20〜80℃で
ある。
The reaction temperature is 0-100°C, preferably 20-80°C.

一般式()で表わされる化合物は、p−アミ
ノフエノールをジアシル化し、これと塩素、臭素
などと反応させることにより高収率で得ることが
できる。
The compound represented by the general formula () can be obtained in high yield by diacylating p-aminophenol and reacting it with chlorine, bromine, etc.

次に本発明を実施例によつてさらに詳しく説明
する。文中、部は重量部を示す。
Next, the present invention will be explained in more detail with reference to Examples. In the text, parts indicate parts by weight.

実施例 1 O,N−ジアセチル−3−クロロ−4−アミノ
フエノール10部を苛性ソーダ4部を含む水50部と
共に60℃で1時間加熱した。冷却後、硫酸で中和
し、クロロホルムで抽出後、クロロホルムを留去
する。2−クロロ−4−ヒドロキシアセトアニリ
ド8部を得た。
Example 1 10 parts of O,N-diacetyl-3-chloro-4-aminophenol was heated at 60°C for 1 hour with 50 parts of water containing 4 parts of caustic soda. After cooling, neutralize with sulfuric acid, extract with chloroform, and then distill off the chloroform. 8 parts of 2-chloro-4-hydroxyacetanilide were obtained.

m.p.119〜120℃ 実施例 2 O,N−ジアセチル−3−クロロ−4−アミノ
フエノール10部を苛性カリ7部と水40部と、ジク
ロルベンゼン40部と共に50℃で2時間加熱する。
冷却後、硫酸で中和し、加熱、分液した後、ジク
ロルベンゼンを留去する。実施例1と同じ化合物
7.7部を得た。
mp119-120°C Example 2 10 parts of O,N-diacetyl-3-chloro-4-aminophenol are heated with 7 parts of caustic potassium, 40 parts of water, and 40 parts of dichlorobenzene at 50°C for 2 hours.
After cooling, the mixture is neutralized with sulfuric acid, heated and separated, and dichlorobenzene is distilled off. Same compound as Example 1
Got 7.7 copies.

m.p.118〜120℃ 実施例 3 O,N−ジアセチル−3−ブロモ−4−アミノ
フエノール10部を炭酸ソーダ6部を含む水70部と
共に70℃で1時間加熱する。冷却後、硫酸で中和
し、過、水洗、乾燥する。2−ブロモ−4−ヒ
ドロキシアセトアニリド8.1部を得た。
mp118-120°C Example 3 10 parts of O,N-diacetyl-3-bromo-4-aminophenol are heated with 70 parts of water containing 6 parts of soda carbonate at 70°C for 1 hour. After cooling, neutralize with sulfuric acid, filter, wash with water, and dry. 8.1 parts of 2-bromo-4-hydroxyacetanilide were obtained.

m.p.115〜117℃ 実施例 4 O,N−ジプロピオニル−3−クロロ−4−ア
ミノフエノール10部を苛性ソーダ4部を含む水50
部と共に50℃で3時間加熱する。
mp115-117℃ Example 4 10 parts of O,N-dipropionyl-3-chloro-4-aminophenol was added to 50 parts of water containing 4 parts of caustic soda.
Heat at 50°C for 3 hours with the following ingredients.

冷却後、硫酸で中和し、クロロホルムで抽出
後、クロロホルムを留去する。2−フロロ−4−
ヒドロキシプロピオアニリド7.5部を得た。
After cooling, neutralize with sulfuric acid, extract with chloroform, and then distill off the chloroform. 2-fluoro-4-
7.5 parts of hydroxypropioanilide were obtained.

m.p.107〜109℃ m.p.107~109℃

Claims (1)

【特許請求の範囲】 1 一般式() 〔式中、Rは低級アルキル素、Xはハロゲン原
子を表わす。〕 で示される化合物を水性媒体中、アルカリと処理
することを特徴とする一般式() 〔式中、R,Xは前記と同じ意味を表わす。〕 で示されるフエノール誘導体の製造方法。
[Claims] 1 General formula () [In the formula, R represents a lower alkyl group, and X represents a halogen atom. ] A general formula () characterized in that the compound represented by is treated with an alkali in an aqueous medium. [In the formula, R and X have the same meanings as above. ] A method for producing a phenol derivative represented by.
JP14619983A 1983-08-09 1983-08-09 Preparation of phenol derivative Granted JPS6036449A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14619983A JPS6036449A (en) 1983-08-09 1983-08-09 Preparation of phenol derivative

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14619983A JPS6036449A (en) 1983-08-09 1983-08-09 Preparation of phenol derivative

Publications (2)

Publication Number Publication Date
JPS6036449A JPS6036449A (en) 1985-02-25
JPH0441139B2 true JPH0441139B2 (en) 1992-07-07

Family

ID=15402365

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14619983A Granted JPS6036449A (en) 1983-08-09 1983-08-09 Preparation of phenol derivative

Country Status (1)

Country Link
JP (1) JPS6036449A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2526937B2 (en) * 1987-11-10 1996-08-21 住友化学工業株式会社 4-acetylamino-3-fluorophenol

Also Published As

Publication number Publication date
JPS6036449A (en) 1985-02-25

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