JPH11180937A - Preparation of 5-aminolevulinic acid - Google Patents

Preparation of 5-aminolevulinic acid

Info

Publication number
JPH11180937A
JPH11180937A JP36588597A JP36588597A JPH11180937A JP H11180937 A JPH11180937 A JP H11180937A JP 36588597 A JP36588597 A JP 36588597A JP 36588597 A JP36588597 A JP 36588597A JP H11180937 A JPH11180937 A JP H11180937A
Authority
JP
Japan
Prior art keywords
reaction
aminolevulinic acid
acid
hydrogen halide
aminomethylfurfural
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.)
Pending
Application number
JP36588597A
Other languages
Japanese (ja)
Inventor
Masahiko Tajima
聖彦 田嶋
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.)
Noguchi Institute
Original Assignee
Noguchi Institute
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 Noguchi Institute filed Critical Noguchi Institute
Priority to JP36588597A priority Critical patent/JPH11180937A/en
Publication of JPH11180937A publication Critical patent/JPH11180937A/en
Pending legal-status Critical Current

Links

Landscapes

  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a method for readily preparing the subject acid useful as a plant growth regulatory material by one-pot reaction by heating a raw material in the presence of a hydrogen halide as an acidic catalyst. SOLUTION: A 5-aminomethylfurfural derivative (preferably, 5- acetoamidomethylfurfural) is heated with an acid catalyst to provide the objective compound (e.g. 5-aminolevulinic acid hydrochloride) in the method for preparing the objective compound. The acid catalyst is preferably hydrogen halide (e.g. hydrogen chloride), and the reaction is carried out, for example, in an aqueous medium, under the condition of 80-160 deg.C reaction temperature, 12-48 hr reaction time, etc.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明に関わる5−アミノレ
ブリン酸は、近年新しい植物生長調節物質として注目さ
れている物質である。[ 化学と工業, 46(6), 58(199
3).]
BACKGROUND OF THE INVENTION 5-Aminolevulinic acid according to the present invention is a substance that has recently attracted attention as a new plant growth regulator. [Chemistry and Industry, 46 (6), 58 (199
3).]

【0002】[0002]

【従来の技術】5−アミノレブリン酸を合成する方法と
しては、5−アミノメチルフルフラールを出発物質とし
て、光酸化、還元および、加水分解を組み合わせたプロ
セスで合成する方法[ SYNTHESIS, 303(1995).] を初め
として、多数の方法が知られており、より簡便な製造法
の開発が追求されて来た。
2. Description of the Related Art As a method for synthesizing 5-aminolevulinic acid, a method for synthesizing 5-aminomethylfurfural as a starting material by a process combining photooxidation, reduction and hydrolysis [SYNTHESIS, 303 (1995). And many other methods are known, and the development of simpler manufacturing methods has been pursued.

【0003】[0003]

【発明が解決しようとする課題】One-potの反応による
5−アミノレブリン酸の製造法の開発。
The development of a method for producing 5-aminolevulinic acid by one-pot reaction.

【0004】[0004]

【課題を解決するための手段】5−アセトアミドメチル
フルフラールの反応を種々検討した結果、ハロゲン化水
素の共存下に加熱することによって5−アミノレブリン
酸が得られることを見いだし、本発明を完成するに至っ
た。
As a result of various studies on the reaction of 5-acetamidomethylfurfural, it was found that 5-aminolevulinic acid can be obtained by heating in the presence of hydrogen halide, and the present invention was completed. Reached.

【0005】すなわち、本発明の要旨は、5−アミノメ
チルフルフラール誘導体をハロゲン化水素酸中で加熱す
ることを特徴とする、 5−アミノレブリン酸の製造法
である。
That is, the gist of the present invention is a method for producing 5-aminolevulinic acid, which comprises heating a 5-aminomethylfurfural derivative in hydrohalic acid.

【0006】かかる反応は、本発明者によって初めて明
らかにされた新規な反応である。
[0006] Such a reaction is a novel reaction first revealed by the present inventors.

【0007】[0007]

【発明の実施の形態】この反応において、原料として用
いられる5−アミノメチルフルフラール誘導体として
は、ヘキソース類から製造される5−ヒドロキシメチル
フルフラールを、トリフルオロメタンスルフォン酸の共
存下にアセトニトリルと反応させることにより容易に得
られる5−アセトアミドメチルフルフラール[ SYNTHESI
S, 303(1995).] 及び、その加水分解生成物である5−ア
ミノメチルフルフラールを挙げることができる。しかし
ながら、本研究の方法に於いては、5−アセトアミドメ
チルフルフラールが充分加水分解される反応条件である
ことを考え、5−アセトアミドメチルフルフラールを出
発物質とする5−アミノレブリン酸の製造法を検討し
た。
DETAILED DESCRIPTION OF THE INVENTION In this reaction, as a 5-aminomethylfurfural derivative used as a raw material, 5-hydroxymethylfurfural produced from hexoses is reacted with acetonitrile in the presence of trifluoromethanesulfonic acid. 5-acetamidomethylfurfural [SYNTHESI
S, 303 (1995).] And its hydrolysis product, 5-aminomethylfurfural. However, considering the reaction conditions under which 5-acetamidomethylfurfural is sufficiently hydrolyzed in the method of the present study, a method for producing 5-aminolevulinic acid using 5-acetamidomethylfurfural as a starting material was studied. .

【0008】5−アセトアミドメチルフルフラールのハ
ロゲン化水素を触媒とする反応は、水溶媒中で実施され
る。
The reaction of 5-acetamidomethylfurfural catalyzed by hydrogen halide is carried out in an aqueous solvent.

【0009】ハロゲン化水素としては、塩化水素又は、
臭化水素が用いられる。
As the hydrogen halide, hydrogen chloride or
Hydrogen bromide is used.

【0010】ハロゲン化水素の水溶液は、市販の濃塩酸
又は、臭化水素水を用いることができる。
As the aqueous solution of hydrogen halide, commercially available concentrated hydrochloric acid or aqueous hydrogen bromide can be used.

【0011】5−アセトアミドメチルフルフラールの反
応系中での濃度は、特に制限されない。
[0011] The concentration of 5-acetamidomethylfurfural in the reaction system is not particularly limited.

【0012】反応圧力は、常圧から加圧状態の間で任意
である。
The reaction pressure is arbitrary between normal pressure and pressurized state.

【0013】反応温度は、80〜160℃の間で任意で
あるが、100℃付近が望ましい。反応時間は反応温度
により、12〜48時間の間で任意である。
The reaction temperature is arbitrary between 80 and 160 ° C., preferably around 100 ° C. The reaction time is optional between 12 and 48 hours, depending on the reaction temperature.

【0014】このような反応によって、本発明の化合物
である5−アミノレブリン酸ハロゲン化水素塩が容易に
得られ、通常の分離手段、例えば抽出、分液、濃縮、薄
層クロマトグラフィー、カラムクロマトグラフィー等に
より反応混合物から単離精製することができる。
By such a reaction, the compound of the present invention, 5-aminolevulinic acid hydrohalide, can be easily obtained, and can be easily separated by conventional separation means such as extraction, liquid separation, concentration, thin layer chromatography, and column chromatography. Can be isolated and purified from the reaction mixture.

【0015】[0015]

【実施例1】5−アセトアミドメチルフルフラール50
mgに濃塩酸2mlを加え、耐圧反応容器中で100℃
に於て24時間反応させる。反応終了後、反応混合物を
減圧下に濃縮し、得られた残さからメタノールで抽出す
ることによって5−アミノレブリン酸塩酸塩を得た。
(収率 32.1%)
Example 1 5-acetamidomethylfurfural 50
Add 2 ml of concentrated hydrochloric acid to the solution, and add 100 ° C
And let react for 24 hours. After completion of the reaction, the reaction mixture was concentrated under reduced pressure, and the obtained residue was extracted with methanol to obtain 5-aminolevulinic acid hydrochloride.
(Yield 32.1%)

【0016】[0016]

【実施例2】5−アセトアミドメチルフルフラール50
mgに濃塩酸2mlを加え、耐圧反応容器中で100℃
に於て48時間反応させる。反応終了後、反応混合物を
減圧下に濃縮し、得られた残さからメタノールで抽出す
ることによって5−アミノレブリン酸塩酸塩を得た。
(収率 29.5%)
Example 2 5-acetamidomethylfurfural 50
Add 2 ml of concentrated hydrochloric acid to the solution, and add 100 ° C
And react for 48 hours. After completion of the reaction, the reaction mixture was concentrated under reduced pressure, and the obtained residue was extracted with methanol to obtain 5-aminolevulinic acid hydrochloride.
(Yield 29.5%)

【0017】[0017]

【実施例3】5−アセトアミドメチルフルフラール50
mgに臭化水素水(47%)2mlを加え、耐圧反応容
器中で100℃に於て24時間反応させる。反応終了
後、反応混合物を減圧下に濃縮し、得られた残さからメ
タノールで抽出することによって5−アミノレブリン酸
臭化水素塩を得た。(収率 27.2%)
Example 3 5-acetamidomethylfurfural 50
2 mg of hydrogen bromide water (47%) is added to the mg, and the mixture is reacted at 100 ° C. for 24 hours in a pressure-resistant reactor. After completion of the reaction, the reaction mixture was concentrated under reduced pressure, and the obtained residue was extracted with methanol to obtain 5-aminolevulinic acid hydrobromide. (Yield 27.2%)

【0018】[0018]

【発明の効果】本発明によって製造される5−アミノレ
ブリン酸は、近年植物の生長促進剤として注目されてい
る化合物であり、その簡便な合成法の開発を目指して種
々の方法が報告されてきた。本発明で出発物質として用
いる5−アミノメチルフルフラール誘導体は、ヘキソー
スから製造される5−ヒドロキシメチルフルフラールを
従来法で処理することによって容易に合成可能な化合物
である。この5−アミノメチルフルフラール誘導体を出
発物質とする5−アミノレブリン酸の合成法に関して
は、光酸化、還元および、加水分解を組み合わせたプロ
セスで合成する方法[ SYNTHESIS, 303(1995).] が報告
されているが、本発明の方法は、ハロゲン化水素を触媒
とするOne−potの反応という簡単なプロセスによ
る当該化合物への変換を可能にしたものであり、工業用
プロセスとして有用な方法である。
The 5-aminolevulinic acid produced according to the present invention is a compound that has recently attracted attention as a plant growth promoter, and various methods have been reported with the aim of developing a simple synthesis method thereof. . The 5-aminomethylfurfural derivative used as a starting material in the present invention is a compound that can be easily synthesized by treating 5-hydroxymethylfurfural produced from hexose by a conventional method. With respect to a method for synthesizing 5-aminolevulinic acid using this 5-aminomethylfurfural derivative as a starting material, a method for synthesizing it by a process combining photooxidation, reduction and hydrolysis [SYNTHESIS, 303 (1995).] Has been reported. However, the method of the present invention enables conversion to the compound by a simple process of one-pot reaction using a hydrogen halide as a catalyst, and is a useful method as an industrial process.

Claims (3)

【特許請求の範囲】[Claims] 【請求項1】5−アミノメチルフルフラール誘導体を、
酸触媒共存下に加熱することを特徴とする、5−アミノ
レブリン酸の製造法。
(1) a 5-aminomethylfurfural derivative,
A method for producing 5-aminolevulinic acid, comprising heating in the presence of an acid catalyst.
【請求項2】5−アミノメチルフルフラール誘導体を、
ハロゲン化水素共存下に加熱することを特徴とする、5
−アミノレブリン酸の製造法。
2. A 5-aminomethylfurfural derivative,
Characterized by heating in the presence of hydrogen halide, 5
-A process for producing aminolevulinic acid.
【請求項3】5−アセトアミドメチルフルフラールを、
ハロゲン化水素共存下に加熱することを特徴とする、5
−アミノレブリン酸の製造法。
3. A method for producing 5-acetamidomethylfurfural, comprising:
Characterized by heating in the presence of hydrogen halide, 5
-A process for producing aminolevulinic acid.
JP36588597A 1997-12-22 1997-12-22 Preparation of 5-aminolevulinic acid Pending JPH11180937A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP36588597A JPH11180937A (en) 1997-12-22 1997-12-22 Preparation of 5-aminolevulinic acid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP36588597A JPH11180937A (en) 1997-12-22 1997-12-22 Preparation of 5-aminolevulinic acid

Publications (1)

Publication Number Publication Date
JPH11180937A true JPH11180937A (en) 1999-07-06

Family

ID=18485365

Family Applications (1)

Application Number Title Priority Date Filing Date
JP36588597A Pending JPH11180937A (en) 1997-12-22 1997-12-22 Preparation of 5-aminolevulinic acid

Country Status (1)

Country Link
JP (1) JPH11180937A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10407547B2 (en) 2014-05-12 2019-09-10 Micromidas, Inc. Methods of producing compounds from 5-(halomethyl)furfural

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10407547B2 (en) 2014-05-12 2019-09-10 Micromidas, Inc. Methods of producing compounds from 5-(halomethyl)furfural

Similar Documents

Publication Publication Date Title
US3733352A (en) Preparation of d-threo-1-p-methyl-sulfonylphenyl-2-dichloro-acet-amidopropane-1,3-diol
JPH11180937A (en) Preparation of 5-aminolevulinic acid
JPH01193246A (en) Production of 2,3-dichloropyridine
JP2573687B2 (en) Method for producing isopropyl alcohol
JPH11180936A (en) Preparation of 5-aminolevulinic acid
EP0132201B1 (en) Process for the preparation of crystalline sodium phenylpyruvate monohydrate
CN113004161B (en) Preparation method of (2R, 3R) -3-methyl-3-phenylalanine
EP0376184A2 (en) Process for preparing DL-serine and process for separation and purification of the same
CN109384641B (en) Synthesis method of 1, 2-vicinal diol compound
JPS642093B2 (en)
JPH1072419A (en) Production of tertiary-leucine
JPH07196610A (en) Production of 5-chloro-2-oxyindole
JPH0789891A (en) Production of hydroxybenzaldehyde derivative
JPS625942A (en) Production of l-or d-n2-benzyloxycarbonyllysine
JPH1112238A (en) Production of 1-(beta-hydroxyethyl)-2,5-diaminobenzene or its salt
KR820001844B1 (en) Method for preparation of benzaldehyde
KR100673593B1 (en) Preparation method of l-carnitine
JPS5838268A (en) Preparation of uracil
JP2857402B2 (en) Method for preparing 2-phenyl-1,3-propanediol dicarbamate
JP4065576B2 (en) Process for producing 2,6-di-tert-alkylcyclohexanols
JPH01299245A (en) Production of squalic acid
JPH01268658A (en) Production of 4-fluoro-3-trifluoromethylphenol
JPH11310558A (en) Production of 2-amino-4,5,3',4'-tetramethoxybenzophenone
JPH06100490A (en) Production of optically active alpha-methylsuccinic acid
JP2003146921A (en) Method for producing perfluoroalkyl compound