JPS58134059A - Production of alpha-aminomethylbenzyl alcohol derivative - Google Patents

Production of alpha-aminomethylbenzyl alcohol derivative

Info

Publication number
JPS58134059A
JPS58134059A JP57014785A JP1478582A JPS58134059A JP S58134059 A JPS58134059 A JP S58134059A JP 57014785 A JP57014785 A JP 57014785A JP 1478582 A JP1478582 A JP 1478582A JP S58134059 A JPS58134059 A JP S58134059A
Authority
JP
Japan
Prior art keywords
butylaminomethyl
benzyl alcohol
alpha
tert
tertiary
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.)
Granted
Application number
JP57014785A
Other languages
Japanese (ja)
Other versions
JPH0316337B2 (en
Inventor
Hiroshi Ikawa
伊川 博
Saburo Sugai
菅井 三郎
Tokuji Okazaki
岡崎 徳二
Mitsuya Akaboshi
赤星 三彌
Shiro Ikegami
池上 四郎
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.)
OTA SEIYAKU KK
Original Assignee
OTA SEIYAKU KK
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 OTA SEIYAKU KK filed Critical OTA SEIYAKU KK
Priority to JP57014785A priority Critical patent/JPS58134059A/en
Publication of JPS58134059A publication Critical patent/JPS58134059A/en
Publication of JPH0316337B2 publication Critical patent/JPH0316337B2/ja
Granted legal-status Critical Current

Links

Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00Technologies relating to chemical industry
    • Y02P20/50Improvements relating to the production of bulk chemicals
    • Y02P20/52Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts

Abstract

PURPOSE:3,4-Dihydroxy-alpha-(tert.-butylaminomethyl)benzyl alcohol is esterified with p-toluyl chloride to give the titled compound of high purity readily in high yield, which is used as a sympathetic stimulant. CONSTITUTION:The reaction between 3,4-dihydroxy-alpha-(tert.-butylaminomethyl) benzyl alcohol and p-toluyl chloride is carried out in the presence of a base such as triethylamine or pyridine in a solvent such as benzene, toluene or dimethylformamide at -30-50 deg.C for 30min to 4hr to give 3,4-di(p-toluyloxy)-alpha-(tert.-butylaminomethyl)benzyl alcohol. It is preferred that the compound of formulaIis previously converted into a phenolate using sodium hydride or sodium methoxide, before subjected to esterification.

Description

【発明の詳細な説明】 本発明は、3+4−’(p  )ルイルオキシ)−α−
(三級フチルアミノメチル)ベンジルアルコールの新規
な工業的製法に関するものである。
DETAILED DESCRIPTION OF THE INVENTION The present invention provides 3+4-'(p)ruyloxy)-α-
This invention relates to a new industrial method for producing (tertiary phthylaminomethyl)benzyl alcohol.

3.4−シ(p−トルイルオキシ)−α−(三級ブチル
アミノメチル)ベンジルアルコール(7)メタンスルホ
ン酸塩は医薬品、特に交感神経興奮薬として有用な物質
であることが知らオtている。
3.4-(p-Toluyloxy)-α-(tert-butylaminomethyl)benzyl alcohol (7) Methanesulfonate is known to be a useful substance as a pharmaceutical, especially as a sympathomimetic. There is.

従来、この化合物の製造法としては、3,4−ジヒドロ
キシフェニル三級ブチルアミノメチルケトンの2個の水
酸基をU)ルイル化した後、そのシトルイル化された化
合物をエタノール中で接触還元するか又は、メタノール
中で水素化ホウ素ナトリウムで還元するという方法が知
C)れている。(特公昭53−14544 )しかしな
がら、このようなエステル化合物はエタノールあるいは
メタノールなどのアルコール溶媒中では加溶媒分解を受
は易いため、託−)てこれらの方法における還元条件の
下におい−Cは、副生物の生成を避は難いなどの欠点が
あり、そのため、これらの方法は工業的に実施する際の
難点を有するものであった。
Conventionally, methods for producing this compound include U)ruylation of two hydroxyl groups of 3,4-dihydroxyphenyl tertiary butylaminomethyl ketone, followed by catalytic reduction of the citolylated compound in ethanol, or A method of reduction with sodium borohydride in methanol is known (C). (Japanese Patent Publication No. 53-14544) However, since such ester compounds are susceptible to solvolysis in alcoholic solvents such as ethanol or methanol, under the reducing conditions in these methods, -C is These methods have drawbacks such as the unavoidable production of by-products, which makes these methods difficult to implement industrially.

本発明者らは、この6,4−ジ(p−)ルイル ゛オキ
シ)−α−(三級ブチルアミノメチル)ベンジルアルコ
ールの工業的製法につき鋭意研究の結果、式■ で表わされる化合物のフェノール性水酸基のみを緩和な
反応条件下で選択的にエステル化し、式■ で表わされる6、4−ジ(p−トルイル°オキシ)−α
−(三級ブチルアミノメチル)ベンジルアルコールを得
ることに成功した。
As a result of extensive research into the industrial production method of 6,4-di(p-)rulyloxy)-α-(tert-butylaminomethyl)benzyl alcohol, the present inventors found that the phenol of the compound represented by formula By selectively esterifying only the functional hydroxyl groups under mild reaction conditions, 6,4-di(p-tolyl°oxy)-α expressed by the formula
-(tertiary butylaminomethyl)benzyl alcohol was successfully obtained.

すなわち、本発明は、3.4− ’、; (p −)ル
イルオキシ)−α−(三級ブチルアミノメチル)ベンジ
ルアルコールを工業的に製造するための、価値ある方法
を提供するものである。以下に、本発明をさらに詳細に
説明する。
That is, the present invention provides a valuable method for industrially producing 3.4-'; (p-)ruyloxy)-α-(tert-butylaminomethyl)benzyl alcohol. The present invention will be explained in more detail below.

本発明は、弐■ で示される、3.4−’;ヒドロキシーα−(三級ブチ
ルアミノメチル)ベンジルアルコールを原料として用(
・て、これに塩化D−)ルイルを反応させることに、、
より、そのフェノール性水酸基のみを選択的にジエステ
ル化することを特徴と1−“九■ で示される3、4−ジ(p−)ルイルオキシ)α−(三
級フチルアミノメチル)ベンジルアルコールの製造方法
を提供するものである。
The present invention uses 3.4-'; hydroxy-α-(tertiary butylaminomethyl)benzyl alcohol as a raw material (
・So, by reacting this with D-)ruyl chloride,
3,4-di(p-)ruyloxy)α-(tertiary phthylaminomethyl)benzyl alcohol, which is characterized by selective diesterification of only its phenolic hydroxyl group. A manufacturing method is provided.

本発明方法においては、式■で表わされる化合物をあら
かじめ水素化ナトリウム又はナトリウムメトキサイドを
用いてフェルレートの形に変換しておき、エステル化反
応を行うのが好ましい。また、あるいは、式■で表わさ
れる化合物と塩化p−)ルイルとの反応に際し、三級ア
ミン、たとえばトリエチルアミン又はピリジンなどの塩
基物質を存在せしめることも好ましい結果を与える。
In the method of the present invention, it is preferable to convert the compound represented by formula (1) into a ferulate form using sodium hydride or sodium methoxide in advance, and then carry out the esterification reaction. Alternatively, preferable results can also be obtained by allowing a basic substance such as a tertiary amine, such as triethylamine or pyridine, to be present during the reaction of the compound represented by formula (1) with p-)ruyl chloride.

溶媒としては、不活性溶媒、たとえばベンゼン、トルエ
ン、ジクロルメタン、アセトニトリル、ジメチルホルム
アミド又はピリジンなどが用いられ、反応は一60℃な
いし50℃の温度範囲で行なうのが好ましい。反応時間
は、通常は、60分間ないし4時間のホロ囲で充分であ
る。
As the solvent, an inert solvent such as benzene, toluene, dichloromethane, acetonitrile, dimethylformamide or pyridine is used, and the reaction is preferably carried out at a temperature range of -60°C to 50°C. A reaction time of 60 minutes to 4 hours is usually sufficient.

本発明方法の特徴的利点としては、 1、 原料物質は安価であり、かつ入手容易なものであ
る。
Characteristic advantages of the method of the present invention include: 1. Raw materials are inexpensive and easily available.

2、 操作が簡便であり、反応の条件も温和である。2. The operation is simple and the reaction conditions are mild.

6、 生成物を取り出す操作が簡便である。6. The operation to take out the product is simple.

4、 副生物が少なく、そのため、目的物の収率および
純度が高い。
4. There are few by-products, so the yield and purity of the target product are high.

等々を挙げることができ、これらの利点は本発明方法が
3 + 4  ’−’ (p  Fルイルオキシ)−α
−(三級ブチルアミノメチル)ベンシルつ′ルコールの
工業的製法として優れたものであることを示すものであ
る。
etc., and these advantages are that the method of the present invention has a
-(tertiary butylaminomethyl)bensyl alcohol is an excellent industrial process.

本発明方法における出発物質であるS、4−;ヒドロキ
ン−α−(三級ブチルアミノメチル)ベンジルアルコー
ルは、本発明者等が新たに開発した方法、すなわち、3
.4−(ジベンジルオキシ)スチレンオキサイドを三級
プチル−アミンでアミン化した後、接触還元する方法あ
る(・はα−クロロメチル−3,4−’、;ヒドロキシ
ー\7゜ルアルコールと三級ブチルアミンとを反応さ1
七る方法などにより、収率良くかつ高純度にf!+ 1
“)れるほか、文献公知のα−三級プチルアミノ−5,
4−’;ヒドロキシアセトフェノンを還元する方法等に
よっても容易に得ることができる。
S,4-;Hydroquine-α-(tertiary butylaminomethyl)benzyl alcohol, which is the starting material in the method of the present invention, is prepared by the method newly developed by the present inventors, namely,
.. There is a method in which 4-(dibenzyloxy)styrene oxide is aminated with tertiary butyl amine and then catalytically reduced (. Reacted with butylamine 1
f! with good yield and high purity using methods such as +1
), as well as α-tertiary butylamino-5, which is known in the literature.
4-'; It can also be easily obtained by a method such as reducing hydroxyacetophenone.

以下に実施例を掲げるが、本発明は、これら実、流側に
限定されるものではない。
Examples are shown below, but the present invention is not limited to these examples.

’1例13.4−>(p−トルイルオキシ)−α−(三
級ブチルアミノメチル)ベ ンジルアルコールの製造 3.4−ジヒドロキシ−α−(三級ブチルアミノメチル
)ベンジルアルコール1.15 F (0,005モル
)をジクロルメタン5−に懸濁し、トリエチルアミン3
.049(0,03モル)を加え、室温で攪拌−下に、
塩化p−)ルイル1.−55f(0,01モル)をジク
ロルメタン3−に溶かした溶液を15分間を要して滴下
する。そのまま室温で1時間攪拌した後、これにアンモ
ニア水10−を加え、□ ジクロルメタン層を分取しJ′水5−で5回洗浄した後
、無水硫酸ナトリウムで乾燥する。次いで、溶媒を留去
すると、淡褐色油状の粗製の標記化合物2.1Of(収
率91.1チ)が得られた。
Example 1 13. Preparation of 4->(p-tolyloxy)-α-(tert-butylaminomethyl)benzyl alcohol 3.4-dihydroxy-α-(tert-butylaminomethyl)benzyl alcohol 1.15 F ( 0,005 mol) was suspended in dichloromethane 5-, triethylamine 3-
.. 049 (0.03 mol) and stirred at room temperature.
p-)ruyl chloride 1. A solution of -55f (0.01 mol) in dichloromethane 3- is added dropwise over a period of 15 minutes. After stirring at room temperature for 1 hour, ammonia water (10) was added thereto, the dichloromethane layer was separated, washed five times with J' water (5), and then dried over anhydrous sodium sulfate. Then, the solvent was distilled off to obtain the crude title compound 2.1Of (yield: 91.1) as a light brown oil.

このものをアセトン3−に溶かし、メタンスルホン酸4
80#19(0,005モル)を加えて結晶化させると
、融点174.5〜176.5℃を示す標古己の化合物
のメタンスノにホン酸塩2.33f(収率86.8%)
が無色結晶として得られた。この化合物の機器データは
次の通りである。
Dissolve this in acetone 3- and methanesulfonic acid 4-
When 80#19 (0,005 mol) is added and crystallized, 2.33f (yield 86.8%) of the methane salt of Shibeko's compound, which has a melting point of 174.5 to 176.5°C, is obtained.
was obtained as colorless crystals. The instrumental data for this compound are as follows.

元素分析値C29H35NO8S 計算値(イ)c:62.46.H:6.33.N:2.
51実測値□□□LC:62.39.H:6.41.N
:2.47NMRδcDct、  1.!+9(S、9
H)2.34(s、6H) 2.80(e、3H) 3、15 (m、 2H) 5.35(m、 IH) ;’、05〜7.99(m、11H) IRz−”νc=017,30 11′・ しOH5340・ Mass 7QeV % : 461.443.326
,241 、149゜136.91,86.57 実施例26,4−ジ(p−トルイルオキシ)−α−(三
級ブチルアミノメチル)ベ ンジルアルコールの製造 3.4−ジヒドロキシ−α−(三級ブチルアミ′ツメチ
ル)ベンジルアルコール1.13 t (0,005モ
ル)をンメチルホルムアミド10ffl/に溶かし、0
℃で°攪拌下に60チ油性水素化す) IJウム0.4
r(0,01モル)−を加える。60分後塩化p−トル
イル1.55F(0,01モル)を10分間を要して滴
下する。そのまま0℃で6時間撹拌した後、ベンゼン1
5mと水15−とを加え、ベンゼン層を分取する。これ
を水10m/で2回洗浄し、無水硫酸ナトリウムで乾燥
した後、溶媒を留去すると、暗褐色油状物2.54fが
得られた。このものをエーテル20−に溶かし、これに
メタンスルホン酸48 CHlg(0,005モル)を
加え、生じた沈殿をアセトン7 mlで再結晶すると、
融点178.5〜180℃を示す標記゛の化合物のメタ
ンスルホン酸塩1.84r(収率66.0%)が得られ
た。
Elemental analysis value C29H35NO8S Calculated value (a) c: 62.46. H:6.33. N:2.
51 Actual value □□□LC: 62.39. H:6.41. N
:2.47NMRδcDct, 1. ! +9 (S, 9
H) 2.34 (s, 6H) 2.80 (e, 3H) 3, 15 (m, 2H) 5.35 (m, IH) ;', 05-7.99 (m, 11H) IRz-" νc=017,30 11'・ OH5340・ Mass 7QeV %: 461.443.326
, 241 , 149° 136.91, 86.57 Example 2 Production of 4-di(p-tolyloxy)-α-(tertiary butylaminomethyl)benzyl alcohol 3.4-Dihydroxy-α-(tertiary Dissolve 1.13 t (0,005 mol) of butylaminomethyl)benzyl alcohol in 10 ffl/ml of methylformamide,
Hydrogenate the oil at 60 °C under stirring) IJum 0.4
Add r(0.01 mol)-. After 60 minutes, 1.55 F (0.01 mol) of p-tolyl chloride was added dropwise over a period of 10 minutes. After stirring for 6 hours at 0°C, benzene 1
5m and 15m of water were added, and the benzene layer was separated. This was washed twice with 10ml of water, dried over anhydrous sodium sulfate, and the solvent was distilled off to obtain 2.54f of a dark brown oil. This product was dissolved in 20-ether, 48 CHlg (0,005 mol) of methanesulfonic acid was added thereto, and the resulting precipitate was recrystallized with 7 ml of acetone.
1.84r (yield: 66.0%) of the methanesulfonate salt of the title compound having a melting point of 178.5-180°C was obtained.

この化合物の諸分析データは、実施例1で得られたもの
のそれと一致した。
The analytical data for this compound were consistent with that obtained in Example 1.

Claims (1)

【特許請求の範囲】 式■ で表わされる6、4°−ジヒドロキシ−α−(三級ブチ
ルアミノメチル)ベンジルアルコールを塩化p−トルイ
ルを用いてエステル化することを特徴とする式I で表わされる6、4−ジ(p−トルイルオキシ)−α−
(三級ブチルアミノメチル)ベンジルアルコールの製造
法。
[Scope of Claims] 6,4°-dihydroxy-α-(tertiary butylaminomethyl)benzyl alcohol represented by formula (1) is esterified with p-tolyl chloride, which is represented by formula I. 6,4-di(p-toluyloxy)-α-
(Tertiary butylaminomethyl)benzyl alcohol manufacturing method.
JP57014785A 1982-02-03 1982-02-03 Production of alpha-aminomethylbenzyl alcohol derivative Granted JPS58134059A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57014785A JPS58134059A (en) 1982-02-03 1982-02-03 Production of alpha-aminomethylbenzyl alcohol derivative

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57014785A JPS58134059A (en) 1982-02-03 1982-02-03 Production of alpha-aminomethylbenzyl alcohol derivative

Publications (2)

Publication Number Publication Date
JPS58134059A true JPS58134059A (en) 1983-08-10
JPH0316337B2 JPH0316337B2 (en) 1991-03-05

Family

ID=11870704

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57014785A Granted JPS58134059A (en) 1982-02-03 1982-02-03 Production of alpha-aminomethylbenzyl alcohol derivative

Country Status (1)

Country Link
JP (1) JPS58134059A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4614830A (en) * 1985-08-09 1986-09-30 Sterling Drug Inc. Esterification process
CN103113244A (en) * 2013-02-26 2013-05-22 湖南鑫利生物科技有限公司 Method for preparing transdermal absorption synephrine derivative

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4614830A (en) * 1985-08-09 1986-09-30 Sterling Drug Inc. Esterification process
CN103113244A (en) * 2013-02-26 2013-05-22 湖南鑫利生物科技有限公司 Method for preparing transdermal absorption synephrine derivative
CN103113244B (en) * 2013-02-26 2015-06-03 湖南鑫利生物科技有限公司 Method for preparing transdermal absorption synephrine derivative

Also Published As

Publication number Publication date
JPH0316337B2 (en) 1991-03-05

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