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GB982727A - A process for producing tryptophan hydantoin - Google Patents

A process for producing tryptophan hydantoin

Info

Publication number
GB982727A
GB982727A GB2110763A GB2110763A GB982727A GB 982727 A GB982727 A GB 982727A GB 2110763 A GB2110763 A GB 2110763A GB 2110763 A GB2110763 A GB 2110763A GB 982727 A GB982727 A GB 982727A
Authority
GB
United Kingdom
Prior art keywords
acid
strong
hydanto
propionaldehyde
formula
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
Application number
GB2110763A
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.)
Ajinomoto Co Inc
Original Assignee
Ajinomoto Co Inc
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 Ajinomoto Co Inc filed Critical Ajinomoto Co Inc
Publication of GB982727A publication Critical patent/GB982727A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D403/00—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00
    • C07D403/02—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00 containing two hetero rings
    • C07D403/06—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00 containing two hetero rings linked by a carbon chain containing only aliphatic carbon atoms

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Indole Compounds (AREA)

Abstract

Tryptophan hydantoin of the formula <FORM:0982727/C2/1> is produced by heating b - (hydanto - 5 - yl) - propionaldehyde of formula <FORM:0982727/C2/2> in a solution containing a strong acid. The strong acid, preferably at 0.01 to 0.5 Normal, may be hydrochloric acid, sulphuric acid, benzene sulphonic acid, toluene sulphonic acid, oxalic acid, formic acid or a strong cation exchange resin. The solvent may be water, methanol, ethanol, acetic acid or an aqueous solution thereof, and the reaction temperature is maintained at 60 DEG to 100 DEG C. For the preparation of b -(hydanto-5-yl)-propionaldehyde see Specification 982,726.
GB2110763A 1962-06-14 1963-05-27 A process for producing tryptophan hydantoin Expired GB982727A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2424262 1962-06-14

Publications (1)

Publication Number Publication Date
GB982727A true GB982727A (en) 1965-02-10

Family

ID=12132765

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2110763A Expired GB982727A (en) 1962-06-14 1963-05-27 A process for producing tryptophan hydantoin

Country Status (2)

Country Link
GB (1) GB982727A (en)
NL (1) NL293980A (en)

Also Published As

Publication number Publication date
NL293980A (en)

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