JP2689589B2 - Novel alcohols and method for producing the same - Google Patents
Novel alcohols and method for producing the sameInfo
- Publication number
- JP2689589B2 JP2689589B2 JP1099734A JP9973489A JP2689589B2 JP 2689589 B2 JP2689589 B2 JP 2689589B2 JP 1099734 A JP1099734 A JP 1099734A JP 9973489 A JP9973489 A JP 9973489A JP 2689589 B2 JP2689589 B2 JP 2689589B2
- Authority
- JP
- Japan
- Prior art keywords
- propene
- reaction
- hexanone
- hydroxy
- methyl
- 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 - Lifetime
Links
Classifications
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Description
【発明の詳細な説明】 <産業上の利用分野> 本発明は、医薬あるいは農薬の中間体、とりわけプロ
スタグランディン中間体として有用な新規なアルコール
類およびその製造法に関する。DETAILED DESCRIPTION OF THE INVENTION <Field of Industrial Application> The present invention relates to a novel alcohol useful as an intermediate for pharmaceuticals or agricultural chemicals, especially as a prostaglandin intermediate, and a method for producing the same.
さらに詳しくは、プロスタグランディンのω−側鎖部
を構成する4−メチル−4−ヒドロキシ−1−オクチン
の原料化合物として有用な新規なアルコール類およびそ
の製造法に関する。More specifically, the present invention relates to a novel alcohol useful as a starting material compound for 4-methyl-4-hydroxy-1-octyne constituting the ω-side chain portion of prostaglandin and a method for producing the same.
<従来の技術およびその問題点> 4−メチル−4−ヒドロキシ−1−オクチンは、プロ
パルギルブロミドと2−ヘキサノンとからグリニャール
反応によって製造されていた。しかしながら、プロパル
ギルブロミドは自己分解性を有している為に、工業的な
大量使用に於ては、それらの自己分解性を抑制する対策
(安全対策)が必要となるなどの問題点があり、前記の
製造法は必ずしも工業的有利な方法ではなかった。<Prior Art and Its Problems> 4-Methyl-4-hydroxy-1-octyne was produced from Propargyl bromide and 2-hexanone by a Grignard reaction. However, since propargyl bromide has self-decomposability, there are problems such as the need for measures (safety measures) to suppress such self-decomposability in industrial mass use. The above-mentioned production method is not necessarily an industrially advantageous method.
<発明が解決しようとする課題> 本発明者らは、かかる問題点を解決して工業的有利に
4−メチル−4−ヒドロキシ−1−オクチンを製造する
べく検討した結果、2,3−ジハロゲノ−1−プロペンと
2−ヘキサノンから新規なアルコール類を製造できるこ
とおよび該アルコール類が4−メチル−4−ヒドロキシ
−1−オクチンの原料化合物になりうることを見出して
本発明を完成した。<Problems to be Solved by the Invention> As a result of studies to solve the above problems and industrially advantageously produce 4-methyl-4-hydroxy-1-octyne, the present inventors have found that 2,3-dihalogeno The present invention has been completed by finding that a novel alcohol can be produced from -1-propene and 2-hexanone and that the alcohol can be a raw material compound of 4-methyl-4-hydroxy-1-octyne.
<課題を解決するための手段> 本発明は、一般式(I) (式中、Xはハロゲン原子を表わす。) で示される新規なアルコール類およびその製造法であ
る。<Means for Solving the Problems> The present invention provides a compound represented by the general formula (I): (In the formula, X represents a halogen atom.) And a novel alcohol and a method for producing the same.
本発明の新規なアルコール類(I)は、2−ヘキサノ
ンと一般式(II) (式中、Xはハロゲン原子を、Yは塩素原子もしくは臭
素原子をそれぞれ表わす。) で示される2,3−ジハロゲノ−1−プロペンとを、亜鉛
および水の存在下に反応させることにより製造される。The novel alcohols (I) of the present invention include 2-hexanone and the general formula (II). (Wherein X represents a halogen atom and Y represents a chlorine atom or a bromine atom, respectively), and is produced by reacting with 2,3-dihalogeno-1-propene in the presence of zinc and water. It
本発明で使用される2,3−ジハロゲノ−1−プロペン
としては、2,3−ジクロル−1−プロペン、2−クロル
−3−ブロム−1−プロペン、2−ブロム−3−クロル
−1−プロペン、2,3−ジブロム−1−プロペン等が例
示される。Examples of the 2,3-dihalogeno-1-propene used in the present invention include 2,3-dichloro-1-propene, 2-chloro-3-bromo-1-propene, 2-bromo-3-chloro-1- Examples include propene and 2,3-dibromo-1-propene.
これらの2,3−ジハロゲノ−1−プロペン(II)は2
−ヘキサノンに対して通常1〜4倍モル使用されるが、
2,3−ジハロゲノ−1−プロペンが高価である場合に
は、2−ヘキサノンを該2,3−ジハロゲノ−1−プロペ
ンに対して過剰に使用することもできる。These 2,3-dihalogeno-1-propenes (II) are 2
-Usually 1 to 4 times the molar amount of hexanone,
If the 2,3-dihalogeno-1-propene is expensive, 2-hexanone can also be used in excess relative to the 2,3-dihalogeno-1-propene.
亜鉛としては、通常粉末または微粒状のものが使用さ
れる。As zinc, powder or fine particles are usually used.
亜鉛は、通常、2,3−ジハロゲノ−1−プロペンに対
して1〜3倍当量、好ましくは1〜2倍当量使用され
る。Zinc is usually used in 1 to 3 times equivalent, preferably 1 to 2 times equivalent to 2,3-dihalogeno-1-propene.
水は通常2−ヘキサノンに対して1〜50倍重量使用さ
れるが、その使用量は特に制限されるものではない。Water is usually used in an amount of 1 to 50 times the weight of 2-hexanone, but the amount used is not particularly limited.
本発明においては、水以外に有機溶媒を共存させても
良く、かかる有機溶媒としては、n−ヘキサン、トルエ
ンもしくはキシレン等の脂肪族あるいは芳香族炭化水素
系、ジエチルエーテルもしくはテトラヒドロフラン等の
エーテル系またはピリジン等のアミン系溶媒が挙げられ
る。In the present invention, an organic solvent other than water may be allowed to coexist, and examples of such an organic solvent include aliphatic or aromatic hydrocarbons such as n-hexane, toluene or xylene, ethers such as diethyl ether or tetrahydrofuran, or Examples include amine solvents such as pyridine.
これらの有機溶媒は通常2−ヘキサノンに対して0.1
〜30倍重量使用されるが、その使用量は特に制限されな
い。These organic solvents are usually 0.1 to 2-hexanone.
It is used in an amount up to 30 times, but the amount used is not particularly limited.
本発明においては、塩化アンモニウムまたは臭化アン
モニウム等のハロゲン化アンモニウムを共存させても良
く、その使用量は通常水に対して0.05〜1倍重量、好ま
しくは0.1〜1倍重量である。In the present invention, an ammonium halide such as ammonium chloride or ammonium bromide may be allowed to coexist, and the amount thereof is usually 0.05 to 1 times by weight, preferably 0.1 to 1 times by weight that of water.
また、ハロゲン化アンモニウムに代えて酸を使用する
こともできる。かかる酸としては塩酸、硫酸、燐酸等の
鉱酸または酢酸等の有機酸が使用され、その使用量は特
に制限されないが、好ましくは2−ヘキサノンに対して
0.01〜10倍モルである。Further, an acid may be used instead of the ammonium halide. As such an acid, a mineral acid such as hydrochloric acid, sulfuric acid, phosphoric acid or the like, or an organic acid such as acetic acid is used, and the amount thereof is not particularly limited, but preferably to 2-hexanone
It is 0.01 to 10 times mol.
さらに、本発明においては、有機第4級アンモニウム
塩を使用することもできる。Furthermore, in the present invention, an organic quaternary ammonium salt can also be used.
かかる有機第4級アンモニウム塩としては、テトラn
−ブチルアンモニウムブロミド、テトラ−n−ブチルア
ンモニウムクロリド、テトラn−ペンチルアンモニウム
ブロミド、テトラ−n−ペンチルアンモニウムアイオダ
イド、ベンジルトリエチルアンモニウムキロリド、ベン
ジルトリエチルアンモニウムブロミド、ベンジルトリプ
ロピルアンモニウムクロリド、ベンジルトリプロピルア
ンモニウムアイオダイド、ドデシルトリメチルアンモニ
ウムプロミドまたはセチルトリメチルアンモニウムクロ
リド等が挙げられる。Examples of such organic quaternary ammonium salt include tetra n
-Butyl ammonium bromide, tetra-n-butyl ammonium chloride, tetra n-pentyl ammonium bromide, tetra-n-pentyl ammonium iodide, benzyltriethylammonium chloride, benzyltriethylammonium bromide, benzyltripropylammonium chloride, benzyltripropylammonium Examples include iodide, dodecyltrimethylammonium bromide, cetyltrimethylammonium chloride and the like.
反応は通常5〜95℃、好ましくは10〜80℃、より好ま
しくは20〜60℃で行われ、反応の終点は通常2−ヘキサ
ノンまたは2,3−ジハロゲノ−1−プロパン(II)のい
ずれかが反応系から消失した時点をもって決定される。The reaction is usually carried out at 5 to 95 ° C, preferably 10 to 80 ° C, more preferably 20 to 60 ° C, and the end point of the reaction is usually 2-hexanone or 2,3-dihalogeno-1-propane (II). Is determined when it disappears from the reaction system.
反応終了後、反応混合物からの新規なアルコール類
(I)の取出しは、たとえば過、抽出、分液等の後、
有機層を蒸留することにより行われる。After completion of the reaction, the new alcohol (I) can be taken out from the reaction mixture by, for example, filtration, extraction, liquid separation, etc.
This is done by distilling the organic layer.
<発明の効果> かくして本発明によれば、自己分解性を有するプロパ
ルギルブロミドを使用しないので、前記一般式(I)で
示される新規なアルコール類を安全に、かつ工業的有利
に製造することができ、該アルコール類はプロスタグラ
ンディンのω−側鎖部を構成する4−メチル−4−ヒド
ロキシ−1−オクチンの原料化合物として有用である
る。<Effects of the Invention> Thus, according to the present invention, since propargyl bromide having self-decomposability is not used, the novel alcohols represented by the general formula (I) can be produced safely and industrially advantageously. Thus, the alcohols are useful as a starting material compound for 4-methyl-4-hydroxy-1-octyne which constitutes the ω-side chain portion of prostaglandin.
<実施例> 以下、実施例および参考例により本発明を説明する。<Example> Hereinafter, the present invention will be described with reference to Examples and Reference Examples.
実施例1 2−ヘキサノン40g、テトラヒドロフラン100g、亜鉛
粉52.3g、水300gおよび酢酸17gの混合物に、30〜35℃で
2,3−ジクロル−1−プロペン66gを3時間かけて加え
る。滴下終了後、同温度で1時間撹拌する。Example 1 A mixture of 40 g of 2-hexanone, 100 g of tetrahydrofuran, 52.3 g of zinc powder, 300 g of water and 17 g of acetic acid at 30 to 35 ° C.
66 g of 2,3-dichloro-1-propene are added over 3 hours. After completion of dropping, the mixture is stirred at the same temperature for 1 hour.
反応終了後、反応液に酢酸エチル500mlを加えて過
した。液の有機層を減圧下に濃縮して、2−クロル−
4−ヒドロキシ−4−メチル−1−オクテン55.5g(収
率79%)を得た。After completion of the reaction, 500 ml of ethyl acetate was added to the reaction solution and passed. The organic layer of the liquid was concentrated under reduced pressure to give 2-chloro-
55.5 g (yield 79%) of 4-hydroxy-4-methyl-1-octene was obtained.
▲n20 D▼ 1.4572 実施例2 2−ヘキサノン40g、亜鉛粉52.3g、塩化アンモニウム
40gおよび水300gの混合物中に、35℃±5℃で2,3−ジク
ロル−1−プロペン66gおよびテトラヒドロフラン50gの
混合溶液を1時間を要して滴下する。滴下終了後、同温
度で2時間撹拌する。▲ n 20 D ▼ 1.4572 Example 2 40 g of 2-hexanone, 52.3 g of zinc powder, ammonium chloride
To a mixture of 40 g and 300 g of water, a mixed solution of 66 g of 2,3-dichloro-1-propene and 50 g of tetrahydrofuran is added dropwise at 35 ° C. ± 5 ° C. over 1 hour. After completion of dropping, the mixture is stirred at the same temperature for 2 hours.
反応終了後、反応液を酢酸エチル300mlにて抽出す
る。有機層を減圧下に濃縮し、得られた残渣をさらに精
留する。2−クロル−4−ヒドロキシ−4−メチル−1
−オクテン45.6g(収率65%)を得た。After completion of the reaction, the reaction solution is extracted with 300 ml of ethyl acetate. The organic layer is concentrated under reduced pressure, and the obtained residue is further rectified. 2-chloro-4-hydroxy-4-methyl-1
-Octene 45.6 g (yield 65%) was obtained.
実施例3 2−ヘキサノン40g、亜鉛粉39g、塩化セチルトリメチ
ルアンモニウム5g、水300g、トルエン50gおよび2,3−ジ
ブロモ−1−プロペン103gの混合物に40〜45℃で5%塩
酸300gを反応系内のpHが4〜4.5を維持するようにしな
がら3時間で滴下する。滴下終了後、同温度で1時間保
温する。Example 3 A mixture of 40 g of 2-hexanone, 39 g of zinc powder, 5 g of cetyltrimethylammonium chloride, 300 g of water, 50 g of toluene and 103 g of 2,3-dibromo-1-propene was added with 300 g of 5% hydrochloric acid at 40 to 45 ° C. in the reaction system. Is added dropwise over 3 hours while maintaining the pH of 4-4.5. After completion of dropping, the temperature is kept at the same temperature for 1 hour.
反応終了後、反応液を分液し、有機層を減圧下に濃縮
して、2−ブロモ−4−ヒドロキシ−4−メチル−1−
オクテン63g(収率72%)を得た。After the reaction was completed, the reaction solution was separated, and the organic layer was concentrated under reduced pressure to give 2-bromo-4-hydroxy-4-methyl-1-.
63 g of octene (yield 72%) was obtained.
▲n20 D▼ 1.5012 実施例4 2−ヘキサノン40g、テトラヒドロフラン100g、亜鉛
粉52.3、水300gおよびテトラ−n−ブチルアンモニウム
ブロミド5gの混合物中に、30〜35℃で2,3−ジクロル−
1−プロペン66gを3時間かけて滴下した。滴下終了
後、同温度で30分撹拌した。以下、実施例1と同様に後
処理して2−クロル−4−ヒドロキシ−4−メチル−1
−オクテン56.9g(収率81%)を得た。N 20 D 1.5012 Example 4 2,3-dichloro-in a mixture of 40 g of 2-hexanone, 100 g of tetrahydrofuran, 52.3 of zinc powder, 300 g of water and 5 g of tetra-n-butylammonium bromide at 30 to 35 ° C.
66 g of 1-propene was added dropwise over 3 hours. After completion of dropping, the mixture was stirred at the same temperature for 30 minutes. Thereafter, post-treatment was carried out in the same manner as in Example 1 to give 2-chloro-4-hydroxy-4-methyl-1.
56.9 g of octene (81% yield) were obtained.
実施例5 亜鉛粉52g、塩化アンモニウム40g、トルエン50g、水2
00gおよび2−ヘキサノン40gの混合物中に、30〜35℃で
2,3−ジブロモ−1−プロペン103gを2時間で滴下し
た。滴下終了後、同温度で3時間撹拌した。反応混合物
を分液し、得られた有機層を濃縮して2−ブロモ−4−
ヒドロキシ−4−メチル−1−オクテン59.8g(収率68
%)を得た。Example 5 Zinc powder 52 g, ammonium chloride 40 g, toluene 50 g, water 2
In a mixture of 00g and 40g of 2-hexanone at 30-35 ° C
103 g of 2,3-dibromo-1-propene was added dropwise over 2 hours. After completion of dropping, the mixture was stirred at the same temperature for 3 hours. The reaction mixture was separated, and the obtained organic layer was concentrated to give 2-bromo-4-
Hydroxy-4-methyl-1-octene 59.8 g (yield 68
%).
実施例6 2,3−ジクロル−1−プロペンに代えて2−ヨード−
3−ブロム−1−プロペンを用いる以外は実施例1と同
様に反応および後処理すれば2−ヨード−4−ヒドロキ
シ−4−メチル−1−オクテンが得られる。Example 6 2-iodo-instead of 2,3-dichloro-1-propene
The reaction and post-treatment are carried out in the same manner as in Example 1 except that 3-bromo-1-propene is used to give 2-iodo-4-hydroxy-4-methyl-1-octene.
参考例 4−メチル−4−ヒドロキシ−1−オクチンの製造 実施例1で得た2−クロル−4−ヒドロキシ−4−メ
チル−1−オクテン35.3g、ジメチルホルムアミド200g
および苛性ソーダ32gの混合物を45〜50℃で5時間撹拌
した。反応終了後、反応混合物を氷水中に注加し、その
後、エチルエーテルで抽出した。分液後、有機層を濃縮
して4−メチル−4−ヒドロキシ−1−オクチン25.2g
(収率90%)を得た。Reference Example Production of 4-methyl-4-hydroxy-1-octyne 25.3 g of 2-chloro-4-hydroxy-4-methyl-1-octene obtained in Example 1 and 200 g of dimethylformamide
And a mixture of 32 g of caustic soda were stirred at 45-50 ° C for 5 hours. After completion of the reaction, the reaction mixture was poured into ice water and then extracted with ethyl ether. After liquid separation, the organic layer was concentrated to give 4-methyl-4-hydroxy-1-octyne 25.2 g.
(90% yield).
Claims (4)
素原子をそれぞれ表わす。) で示される2,3−ジハロゲノ−1−プロペンとを、亜鉛
および水の存在下に反応させることを特徴とする一般式 (式中、Xは前記と同じ意味を表わす。) で示される新規なアルコール類の製造法。2. 2-Hexanone and the general formula (Wherein, X represents a halogen atom and Y represents a chlorine atom or a bromine atom, respectively), and is reacted with 2,3-dihalogeno-1-propene in the presence of zinc and water. General formula (In the formula, X has the same meaning as described above.) A novel method for producing alcohols.
方法。3. The method according to claim 2, wherein the reaction is carried out in the presence of an acid.
せる請求項2に記載の方法。4. The method according to claim 2, wherein the reaction is carried out in the presence of ammonium halide.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1099734A JP2689589B2 (en) | 1989-04-18 | 1989-04-18 | Novel alcohols and method for producing the same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1099734A JP2689589B2 (en) | 1989-04-18 | 1989-04-18 | Novel alcohols and method for producing the same |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH02279645A JPH02279645A (en) | 1990-11-15 |
JP2689589B2 true JP2689589B2 (en) | 1997-12-10 |
Family
ID=14255277
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1099734A Expired - Lifetime JP2689589B2 (en) | 1989-04-18 | 1989-04-18 | Novel alcohols and method for producing the same |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2689589B2 (en) |
-
1989
- 1989-04-18 JP JP1099734A patent/JP2689589B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH02279645A (en) | 1990-11-15 |
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