KR940000421A - Method for preparing L-phenylalanine methyl ester salt - Google Patents

Method for preparing L-phenylalanine methyl ester salt Download PDF

Info

Publication number
KR940000421A
KR940000421A KR1019920009897A KR920009897A KR940000421A KR 940000421 A KR940000421 A KR 940000421A KR 1019920009897 A KR1019920009897 A KR 1019920009897A KR 920009897 A KR920009897 A KR 920009897A KR 940000421 A KR940000421 A KR 940000421A
Authority
KR
South Korea
Prior art keywords
methyl ester
phenylalanine methyl
preparing
ester salt
mixture
Prior art date
Application number
KR1019920009897A
Other languages
Korean (ko)
Inventor
한민수
현일
노홍식
Original Assignee
유영학
주식회사 미원
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 유영학, 주식회사 미원 filed Critical 유영학
Priority to KR1019920009897A priority Critical patent/KR940000421A/en
Publication of KR940000421A publication Critical patent/KR940000421A/en

Links

Landscapes

  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

본 발명은 L-페닐알라닌 메틸 에스테를 제조하는데 있어서, H2SO4에 SO3또는 H2S2O7을 10∼35% 혼합한 혼합액을 사용하여 반응시 생성되는 물을 제거하도록 하여 고수율로 L-페닐알라닌 메틸 에스테르를 제조할 수 있도록 한 것이다.In the present invention, in the preparation of L-phenylalanine methyl ester, using a mixture of 10 to 35% of SO 3 or H 2 S 2 O 7 in H 2 SO 4 to remove the water generated during the reaction in a high yield It is to be able to prepare L-phenylalanine methyl ester.

Description

L-페닐알라닌 메틸 에스테르염의 제조방법Method for preparing L-phenylalanine methyl ester salt

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

Claims (3)

L-페닐알라닌 메틸 에스테르를 제조하는데 있어서, L-페닐알라닌-메탄올 용액에 H2SO4,과 SO3또는 H2S2O7,의 혼합물을 저온에서 주입한 후 다시 50∼90℃에서 추가반응시킴을 특징으로 하는 L-페닐알라닌 메틸 에스테르의 제조방법.In preparing L-phenylalanine methyl ester, a mixture of H 2 SO 4 , SO 3 or H 2 S 2 O 7 , was injected into the L-phenylalanine-methanol solution at low temperature, and then further reacted at 50 to 90 ° C. Method for producing L-phenylalanine methyl ester, characterized in that. 제1항에 있어서, SO3나 H2S2O7, 를 황산에 10∼35%로 혼합함을 특징으로 하는 방법.The method of claim 1, wherein SO 3 or H 2 S 2 O 7 , is mixed with sulfuric acid at 10 to 35%. 제1항에 있어서, 황산과 SO3또는 H2S2O7의 혼합액을 주입시킬 때 온도를 5℃이하로 함을 특징으로 하는 방법.The method according to claim 1, wherein the temperature is 5 ° C or lower when injecting a mixture of sulfuric acid and SO 3 or H 2 S 2 O 7 . ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019920009897A 1992-06-08 1992-06-08 Method for preparing L-phenylalanine methyl ester salt KR940000421A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019920009897A KR940000421A (en) 1992-06-08 1992-06-08 Method for preparing L-phenylalanine methyl ester salt

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019920009897A KR940000421A (en) 1992-06-08 1992-06-08 Method for preparing L-phenylalanine methyl ester salt

Publications (1)

Publication Number Publication Date
KR940000421A true KR940000421A (en) 1994-01-03

Family

ID=67296528

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019920009897A KR940000421A (en) 1992-06-08 1992-06-08 Method for preparing L-phenylalanine methyl ester salt

Country Status (1)

Country Link
KR (1) KR940000421A (en)

Similar Documents

Publication Publication Date Title
ATE182877T1 (en) METHOD FOR PRODUCING PURIFIED TERPHTHAL ACID
DK0623575T3 (en) Process for producing ketones
DE3687317T2 (en) METHOD FOR PRODUCING BREWING MIXTURES.
KR940000421A (en) Method for preparing L-phenylalanine methyl ester salt
JPS5214745A (en) Preparation of phenylcarbamic acid esters
KR860008174A (en) Method for preparing antipsychotic benzisothiazole S-oxide
KR840006197A (en) Method for preparing N-formyl-L-aspartic anhydride
DE59808752D1 (en) Process for the preparation of anhydrous sodium sulfide
JPS5334716A (en) Preparation of amide amine amphoteric surface active agent
KR860006486A (en) Method for producing α-L-aspartyl-L-phenylalanine methyl ester
GB1500839A (en) Preparation of 4-acylamino-anthrones
KR840002902A (en) Method for Purifying Elastase (Elastase)
KR840009285A (en) Method for preparing branched alkanophosphate
JPS5610135A (en) Preparation of di-n-propylmalonic acid
GB1491772A (en) Method for purifying 11-cyano-undecanoic acid
JPS52108908A (en) Preparation of n-substituted thiolcarbamates
JPS52128290A (en) Preparation of acylpeptides
JPS556405A (en) Manufacture of n-substituted phenylglycine
JPS5553287A (en) Preparation of indole compound
KR850000386A (en) Method for preparing 4-methoxy-3-nitroacetanilide
JPS53121749A (en) Preparation of 5-alkylbenzophenonehydydrazone
JPS5560019A (en) Gas liquor stripping method
JPS54157108A (en) Dry-cleaning method using 1,1,1-trichloroethane
KR920000700A (en) Method for preparing L-N- (1-methyl-2-acetyl-vinyl) -aspartic acid
ATE70264T1 (en) PROCESS FOR PRODUCTION OF BENZYLMERKAPTAN.

Legal Events

Date Code Title Description
WITN Withdrawal due to no request for examination