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JPH0352468B2 - - Google Patents
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JPH0352468B2 - - Google Patents

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Publication number
JPH0352468B2
JPH0352468B2 JP13648382A JP13648382A JPH0352468B2 JP H0352468 B2 JPH0352468 B2 JP H0352468B2 JP 13648382 A JP13648382 A JP 13648382A JP 13648382 A JP13648382 A JP 13648382A JP H0352468 B2 JPH0352468 B2 JP H0352468B2
Authority
JP
Japan
Prior art keywords
butyl
hydroxybenzyl
reaction
acetylene carbamide
formula
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
JP13648382A
Other languages
Japanese (ja)
Other versions
JPS5927892A (en
Inventor
Juko Takahashi
Yutaka Terada
Shinichi Yago
Tamaki Ishii
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 JP13648382A priority Critical patent/JPS5927892A/en
Publication of JPS5927892A publication Critical patent/JPS5927892A/en
Publication of JPH0352468B2 publication Critical patent/JPH0352468B2/ja
Granted legal-status Critical Current

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  • Nitrogen Condensed Heterocyclic Rings (AREA)
  • Anti-Oxidant Or Stabilizer Compositions (AREA)
  • Lubricants (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Description

【発明の詳細な説明】[Detailed description of the invention]

本発明は、一般式() (式中、Aは The present invention is based on the general formula () (In the formula, A is

【式】を示 す。ここでRは水素原子または炭素数1〜4のア
ルキル基を示す。) で示されるアセチレンカーバミド誘導体の製造法
に関する。 上記一般式()で示されるアセチレンカーバ
ミド誘導体は、先に本発明者らにより見出された
新規化合物であつて、合成樹脂、天然ゴム、合成
ゴム等の各種重合体のほか、潤滑油、燃料油など
の石油製品、油脂、グリースなどの各種有機物質
に対する安定剤として非常に有用であり(特願昭
56−167434号)、その製造法についても3−t−
ブチル−5−アルキル(もしくはヒドロ)−4−
ヒドロキシベンジルアルコールとアセチレンカー
バミドとを反応させる方法について開示してい
る。 本発明者らは、かかる新規にしてかつ非常に有
用な一般式()で示されるアセチレンカーバミ
ド誘導体を工業的により有利に製造すべく更に検
討を行つた結果、本発明を完成するに至つた。 すなわち本発明は、一般式() (式中、Rは前記と同じ意味を有し、R′は炭
素数1〜4個のアルキル基を示す) で示されるヒドロキシベンジルアルキルエーテル
類とアセチレンカーバミドを反応させることを特
徴とする前記一般式()で示されるアセチレン
カーバミド誘導体の製造法を提供するものであ
る。 本反応において、一般式()で示されるヒド
ロキシベンジルアルキルエーテル類としては3−
t−ブチル−4−ヒドロキシベンジルメチルエー
テル、3−メチル−5−t−ブチル−4−ヒドロ
キシベンジルメチルエーテル、3,5−ジ−t−
ブチル−4−ヒドロキシベンジルメチルエーテ
ル、3,5−ジ−t−ブチル−4−ヒドロキシベ
ンジルブチルエーテル、3−n−プロピル−5−
t−ブチル−4−ヒドロキシベンジルエチルエー
テル、3−sec−ブチル−5−t−ブチル−4−
ヒドロキシベンジルプロピルエーテルなどが例示
され、かかるヒドロキシベンジルアルキルエーテ
ル類とアセチレンカーバミドとの反応モル比は通
常3.5〜5:1、好ましくは4〜4.6:1である。 本反応は通常、溶媒の存在下に行われ、溶媒と
してはメタノール、エタノール、n−プロピルア
ルコール、イソプロピルアルコール、n−ブチル
アルコール、イソブチルアルコール、sec−ブチ
ルアルコールなどのアルコール類が例示される
が、メタノールおよびエタノールが好ましく使用
される。 また、このようなアルコール溶媒とn−ヘキサ
ンなどの脂肪族炭化水素やトルエンなどの芳香族
炭化水素を併用してもよい。 また、この反応において触媒の使用は有効であ
り、かかる触媒としては水酸化ナトリウム、水酸
化カリウム、水酸化リチウム、ナトリウムメトキ
シド、カリウムメトキシド、ナトリウムエトキシ
ド、カリウムエトキシド、カリウム−t−ブトキ
シドなどの塩基性触媒が用いられるが、水酸化ナ
トリウム、水酸化カリウムが好ましい。触媒の使
用量はアセチレンカーバミドに対して通常0.1〜
6モル倍、好ましくは4〜5モル倍である。 反応温度は約20℃から反応系における還流温度
の範囲であるが、通常は還流温度で行われる。 反応混合物からの目的化合物の分離は、たとえ
ば反応終了後、酸類で塩基性触媒を中和したの
ち、水に不溶な溶媒たとえばトルエン等の有機溶
媒を用いて生成物を抽出し、有機溶媒層を水洗
後、これを濃縮し、必要に応じて濃縮液を更に洗
浄したり、再結晶を行う等の方法により行うこと
ができる。 かくして、本発明方法によれば高収率で、目的
物を容易に得ることができる。 以下、実施例により本発明を説明する。 実施例 1 温度計、撹拌装置、冷却管をそなえた300ml四
口フラスコに3,5−ジ−t−ブチル−4−ヒド
ロキシベンジルブチルエーテル40.36g(0.138モ
ル)、アセチレンカーバミド4.26g(0.03モル)お
よびブタノール50mlを仕込み、容器内の空気を窒
素置換した後、85重量%水酸化カリウム8.60g
(0.138モル)を加え、昇温し、3時間還流下で反
応させた。反応終了後、2規定塩酸75ml(0.15モ
ル)で酸析した後、トルエン100mlで抽出した。
トルエン層を水洗後、トルエンを減圧下で留去
し、濃縮物にn−ヘキサン50mlを加えて再結晶す
ることにより、白色結晶状のN,N′,N″,N
−テトラキス(3,5−ジ−t−ブチル−4−ヒ
ドロキシベンジル)アセチレンカーバミド28.94g
(収率95%)を得た。(融点244〜246℃) 元素分析 C64H94N4O6( )内計算値 C;75.30% (75.70%) H; 9.45% ( 9.33%) N; 5.46% ( 5.52%) FD−MS 分子イオンピーク:1014 実施例 2 温度計、撹拌装置、冷却管をそなえた200ml四
口フラスコに3−t−ブチル−5−メチル−4−
ヒドロキシベンジルメチルエーテル9.57g(0.046
モル)、アセチレンカーバミド1.42g(0.010モル)
およびメタノール20mlを仕込み、容器内の空気を
窒素置換した後、28重量%ナトリウムメトキシド
メタノール溶液を8.87g(0.046モル)加え、昇温
し、40時間還流下で反応させた。反応終了後、2
規定塩酸30ml(0.06モル)で酸析し、トルエン
100mlで抽出した。トルエン層を実施例1と同様
に処理することによつて白色結晶状のN,N′,
N″,N−テトラキス(3−t−ブチル−5−
メチル−4−ヒドロキシベンジル)アセチレンカ
ーバミド7.87g(収率93%)を得た。(融点225〜
227℃) 元素分析 C52H70N4O6 ( )内計算値 C;73.91% (73.73%) H; 8.35% ( 8.33%) N; 6.58% ( 6.61%) FD−MS 分子イオンピーク:846
[Formula] is shown. Here, R represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms. ) The present invention relates to a method for producing an acetylene carbamide derivative shown in the following. The acetylene carbamide derivative represented by the above general formula () is a new compound previously discovered by the present inventors, and is used in various polymers such as synthetic resins, natural rubber, and synthetic rubber, as well as in lubricating oils, It is extremely useful as a stabilizer for various organic substances such as petroleum products such as fuel oil, oils and fats, and greases.
56-167434), and its manufacturing method is also 3-t-
Butyl-5-alkyl (or hydro)-4-
Discloses a method for reacting hydroxybenzyl alcohol and acetylene carbamide. The present inventors conducted further studies to industrially advantageously produce such a novel and extremely useful acetylene carbamide derivative represented by the general formula (), and as a result, they completed the present invention. . That is, the present invention is based on the general formula () (wherein R has the same meaning as above and R' represents an alkyl group having 1 to 4 carbon atoms) and acetylene carbamide are reacted. The present invention provides a method for producing an acetylene carbamide derivative represented by the general formula (). In this reaction, 3-
t-Butyl-4-hydroxybenzyl methyl ether, 3-methyl-5-t-butyl-4-hydroxybenzyl methyl ether, 3,5-di-t-
Butyl-4-hydroxybenzyl methyl ether, 3,5-di-t-butyl-4-hydroxybenzyl butyl ether, 3-n-propyl-5-
t-Butyl-4-hydroxybenzylethyl ether, 3-sec-butyl-5-t-butyl-4-
Examples include hydroxybenzylpropyl ether, and the reaction molar ratio of such hydroxybenzyl alkyl ethers and acetylene carbamide is usually 3.5 to 5:1, preferably 4 to 4.6:1. This reaction is usually carried out in the presence of a solvent, and examples of the solvent include alcohols such as methanol, ethanol, n-propyl alcohol, isopropyl alcohol, n-butyl alcohol, isobutyl alcohol, and sec-butyl alcohol. Methanol and ethanol are preferably used. Further, such an alcohol solvent may be used in combination with an aliphatic hydrocarbon such as n-hexane or an aromatic hydrocarbon such as toluene. In addition, the use of catalysts is effective in this reaction, and such catalysts include sodium hydroxide, potassium hydroxide, lithium hydroxide, sodium methoxide, potassium methoxide, sodium ethoxide, potassium ethoxide, potassium t-butoxide. Basic catalysts such as these are used, and sodium hydroxide and potassium hydroxide are preferred. The amount of catalyst used is usually 0.1 to acetylene carbamide.
The amount is 6 times by mole, preferably 4 to 5 times by mole. The reaction temperature ranges from about 20°C to the reflux temperature of the reaction system, but it is usually carried out at the reflux temperature. To separate the target compound from the reaction mixture, for example, after the completion of the reaction, the basic catalyst is neutralized with an acid, the product is extracted using a water-insoluble solvent such as toluene, and the organic solvent layer is separated. After washing with water, this can be concentrated, and if necessary, the concentrated solution can be further washed or recrystallized. Thus, according to the method of the present invention, the desired product can be easily obtained in high yield. The present invention will be explained below with reference to Examples. Example 1 40.36 g (0.138 mol) of 3,5-di-t-butyl-4-hydroxybenzyl butyl ether and 4.26 g (0.03 mol) of acetylene carbamide were placed in a 300 ml four-necked flask equipped with a thermometer, stirrer, and condenser. After adding 50ml of butanol and replacing the air in the container with nitrogen, 8.60g of 85% potassium hydroxide.
(0.138 mol) was added, the temperature was raised, and the reaction was carried out under reflux for 3 hours. After the reaction was completed, acid precipitation was performed with 75 ml (0.15 mol) of 2N hydrochloric acid, followed by extraction with 100 ml of toluene.
After washing the toluene layer with water, the toluene was distilled off under reduced pressure, and the concentrate was recrystallized by adding 50 ml of n-hexane to obtain white crystalline N, N', N'', N.
-tetrakis(3,5-di-t-butyl-4-hydroxybenzyl)acetylenecarbamide 28.94g
(yield 95%). (Melting point 244-246℃) Elemental analysis C 64 H 94 N 4 O 6 Calculated values in parentheses C: 75.30% (75.70%) H: 9.45% (9.33%) N: 5.46% (5.52%) FD-MS Molecule Ion peak: 1014 Example 2 3-t-butyl-5-methyl-4- was placed in a 200 ml four-necked flask equipped with a thermometer, a stirrer, and a condenser.
Hydroxybenzyl methyl ether 9.57g (0.046
mol), acetylene carbamide 1.42g (0.010 mol)
After charging 20 ml of methanol and replacing the air in the container with nitrogen, 8.87 g (0.046 mol) of a 28% by weight methanol solution of sodium methoxide was added, the temperature was raised, and the reaction was carried out under reflux for 40 hours. After the reaction is complete, 2
Acid precipitation with 30 ml (0.06 mol) of normal hydrochloric acid and toluene
Extracted with 100ml. By treating the toluene layer in the same manner as in Example 1, white crystalline N, N',
N'', N-tetrakis (3-t-butyl-5-
7.87 g (yield 93%) of methyl-4-hydroxybenzyl)acetylene carbamide was obtained. (Melting point 225~
227℃) Elemental analysis C 52 H 70 N 4 O 6 Calculated values in parentheses C: 73.91% (73.73%) H: 8.35% (8.33%) N: 6.58% (6.61%) FD-MS Molecular ion peak: 846

Claims (1)

【特許請求の範囲】 1 一般式 (式中、Rは水素原子または炭素数1〜4個の
アルキル基を、R′は炭素数1〜4個のアルキル
基を示す) で示されるヒドロキシベンジルアルキルエーテル
類とアセチレンカーバミドを反応させることを特
徴とする一般式 (式中、Aは【式】を示 す。ここでRは前記と同じ意味を有する。) で示されるアセチレンカーバミド誘導体の製造
法。
[Claims] 1. General formula (In the formula, R represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, and R' represents an alkyl group having 1 to 4 carbon atoms.) Acetylene carbamide is reacted with a hydroxybenzyl alkyl ether represented by A general formula characterized by (In the formula, A represents [Formula]. Here, R has the same meaning as above.) A method for producing an acetylene carbamide derivative represented by the following.
JP13648382A 1982-08-04 1982-08-04 Preparation of acetylenecarbamide derivative Granted JPS5927892A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13648382A JPS5927892A (en) 1982-08-04 1982-08-04 Preparation of acetylenecarbamide derivative

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13648382A JPS5927892A (en) 1982-08-04 1982-08-04 Preparation of acetylenecarbamide derivative

Publications (2)

Publication Number Publication Date
JPS5927892A JPS5927892A (en) 1984-02-14
JPH0352468B2 true JPH0352468B2 (en) 1991-08-12

Family

ID=15176193

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13648382A Granted JPS5927892A (en) 1982-08-04 1982-08-04 Preparation of acetylenecarbamide derivative

Country Status (1)

Country Link
JP (1) JPS5927892A (en)

Also Published As

Publication number Publication date
JPS5927892A (en) 1984-02-14

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