KR910011750A - Method for preparing L-phenylalanine methyl ester - Google Patents

Method for preparing L-phenylalanine methyl ester Download PDF

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Publication number
KR910011750A
KR910011750A KR1019890018544A KR890018544A KR910011750A KR 910011750 A KR910011750 A KR 910011750A KR 1019890018544 A KR1019890018544 A KR 1019890018544A KR 890018544 A KR890018544 A KR 890018544A KR 910011750 A KR910011750 A KR 910011750A
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KR
South Korea
Prior art keywords
methyl ester
phenylalanine
phenylalanine methyl
preparing
amount
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KR1019890018544A
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Korean (ko)
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KR920008341B1 (en
Inventor
이용국
한민수
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김채방
주식회사 미원
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Priority to KR1019890018544A priority Critical patent/KR920008341B1/en
Publication of KR910011750A publication Critical patent/KR910011750A/en
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Publication of KR920008341B1 publication Critical patent/KR920008341B1/en

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    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C227/00—Preparation of compounds containing amino and carboxyl groups bound to the same carbon skeleton
    • C07C227/14—Preparation of compounds containing amino and carboxyl groups bound to the same carbon skeleton from compounds containing already amino and carboxyl groups or derivatives thereof
    • C07C227/18—Preparation of compounds containing amino and carboxyl groups bound to the same carbon skeleton from compounds containing already amino and carboxyl groups or derivatives thereof by reactions involving amino or carboxyl groups, e.g. hydrolysis of esters or amides, by formation of halides, salts or esters

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Peptides Or Proteins (AREA)

Abstract

내용 없음.No content.

Description

L-페닐알라닌 메틸에스테르의 제조방법Method for preparing L-phenylalanine methyl ester

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

Claims (2)

L-페닐알라닌 메틸에스테르의 제조에 있어, 과량의 메탄올에 촉매로서 황산을 실온에서 첨가하고 L-페닐알라닌을 서서히 투입한 다음 64.7°-85℃에서 2시간동안 환류하는 것을 특징으로 하여 L-페닐알라닌 메틸에스테르 황산염을 제조하고 공지된 방법에 따라 알칼리용액으로 중화한 다음 비수화성 유기용매로 추출하여 L-페닐알라닌 메틸에스테르용액을 얻는 방법.In the production of L-phenylalanine methyl ester, sulfuric acid is added to the excess methanol as a catalyst at room temperature, and L-phenylalanine is slowly added thereto, and then refluxed at 64.7 ° -85 ° C. for 2 hours, thereby producing L-phenylalanine methyl ester. A method of preparing sulfate and neutralizing it with an alkaline solution according to a known method and then extracting it with a non-aqueous organic solvent to obtain an L-phenylalanine methyl ester solution. 상기 1항에서 메탄올의 양은 L-페닐알라닌에 대하여 10 : 1 의 몰비이며 호아산의 양은 L-페닐알라닌에 대하여 4당량 이상을 사용하는 방법.The method of claim 1 wherein the amount of methanol is a molar ratio of 10: 1 relative to L-phenylalanine and the amount of eosinic acid is at least 4 equivalents to L-phenylalanine. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019890018544A 1989-12-14 1989-12-14 Process for the preparation of l-phenyl alaline methylester KR920008341B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019890018544A KR920008341B1 (en) 1989-12-14 1989-12-14 Process for the preparation of l-phenyl alaline methylester

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019890018544A KR920008341B1 (en) 1989-12-14 1989-12-14 Process for the preparation of l-phenyl alaline methylester

Publications (2)

Publication Number Publication Date
KR910011750A true KR910011750A (en) 1991-08-07
KR920008341B1 KR920008341B1 (en) 1992-09-26

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ID=19292887

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Application Number Title Priority Date Filing Date
KR1019890018544A KR920008341B1 (en) 1989-12-14 1989-12-14 Process for the preparation of l-phenyl alaline methylester

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KR (1) KR920008341B1 (en)

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Publication number Publication date
KR920008341B1 (en) 1992-09-26

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