FR2397406A1 - SECONDARY ALKYLIDENE-5 HYDANTOINS AND THEIR PREPARATION PROCESS - Google Patents

SECONDARY ALKYLIDENE-5 HYDANTOINS AND THEIR PREPARATION PROCESS

Info

Publication number
FR2397406A1
FR2397406A1 FR7730131A FR7730131A FR2397406A1 FR 2397406 A1 FR2397406 A1 FR 2397406A1 FR 7730131 A FR7730131 A FR 7730131A FR 7730131 A FR7730131 A FR 7730131A FR 2397406 A1 FR2397406 A1 FR 2397406A1
Authority
FR
France
Prior art keywords
hydantoins
alkylidene
preparation process
radical
useful
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.)
Withdrawn
Application number
FR7730131A
Other languages
French (fr)
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.)
GCP Products UK Ltd
WR Grace and Co Conn
Original Assignee
WR Grace Ltd
WR Grace and Co Conn
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 WR Grace Ltd, WR Grace and Co Conn filed Critical WR Grace Ltd
Publication of FR2397406A1 publication Critical patent/FR2397406A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D233/00—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings
    • C07D233/96—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings having three double bonds between ring members or between ring members and non-ring members

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

Selon l'invention, on prépare des alkylidène secondaire-5 hydantoïnes dont le radical alkylidène est le radical isopropylidene ou sec-butylidène et le fragment hydantoïne avec un aldéhyde correspondant en présence, comme catalyseur, d'ammoniac ou d'une amine ayant un pKb compris entre 3 et 5. Les hydantoines ainsi obtenues sont utiles pour préparer les acides alpha -cétocarboxyliques utiles entre autres pour synthétiser les amino-acides.According to the invention, secondary alkylidene-5 hydantoins are prepared in which the alkylidene radical is the isopropylidene or sec-butylidene radical and the hydantoin moiety with a corresponding aldehyde in the presence, as catalyst, of ammonia or of an amine having a pKb between 3 and 5. The hydantoins thus obtained are useful for preparing alpha-ketocarboxylic acids useful inter alia for synthesizing amino acids.

FR7730131A 1976-10-07 1977-10-06 SECONDARY ALKYLIDENE-5 HYDANTOINS AND THEIR PREPARATION PROCESS Withdrawn FR2397406A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US73042576A 1976-10-07 1976-10-07

Publications (1)

Publication Number Publication Date
FR2397406A1 true FR2397406A1 (en) 1979-02-09

Family

ID=24935311

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7730131A Withdrawn FR2397406A1 (en) 1976-10-07 1977-10-06 SECONDARY ALKYLIDENE-5 HYDANTOINS AND THEIR PREPARATION PROCESS

Country Status (7)

Country Link
JP (1) JPS5346977A (en)
CA (1) CA1096389A (en)
DE (1) DE2744307A1 (en)
FR (1) FR2397406A1 (en)
GB (1) GB1550994A (en)
IT (1) IT1089002B (en)
SE (1) SE7711162L (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2585701A1 (en) * 1984-05-02 1987-02-06 Showa Denko Kk PROCESS FOR PRODUCING HYDANTOIN DERIVATIVE

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3013626C2 (en) * 1980-04-09 1985-06-27 Degussa Ag, 6000 Frankfurt Process for the preparation of 5-arylidene hydantoins (A)
DE3772140D1 (en) * 1986-09-02 1991-09-19 Sagami Chem Res HYDANTOIN DERIVATIVES AND HERBICIDES THAT CONTAIN DERIVATIVES AS AN ACTIVE INGREDIENCE.
JPH0819112B2 (en) * 1986-09-02 1996-02-28 財団法人相模中央化学研究所 Hydantoin derivative
JPH01230559A (en) * 1988-03-11 1989-09-14 Sagami Chem Res Center 5-substituted methylidenehydantoin derivative

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2861079A (en) * 1956-06-04 1958-11-18 Dow Chemical Co Process for making unsaturated hydantoins

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2585701A1 (en) * 1984-05-02 1987-02-06 Showa Denko Kk PROCESS FOR PRODUCING HYDANTOIN DERIVATIVE

Also Published As

Publication number Publication date
JPH0260668B2 (en) 1990-12-17
CA1096389A (en) 1981-02-24
SE7711162L (en) 1978-04-08
IT1089002B (en) 1985-06-10
DE2744307A1 (en) 1978-04-13
GB1550994A (en) 1979-08-22
JPS5346977A (en) 1978-04-27

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Legal Events

Date Code Title Description
RE Withdrawal of published application