CH396918A - Process for the preparation of hydantoins which are mono- or disubstituted in the 5-position - Google Patents

Process for the preparation of hydantoins which are mono- or disubstituted in the 5-position

Info

Publication number
CH396918A
CH396918A CH356260A CH356260A CH396918A CH 396918 A CH396918 A CH 396918A CH 356260 A CH356260 A CH 356260A CH 356260 A CH356260 A CH 356260A CH 396918 A CH396918 A CH 396918A
Authority
CH
Switzerland
Prior art keywords
hydantoins
disubstituted
mono
preparation
Prior art date
Application number
CH356260A
Other languages
German (de)
Inventor
Hueter Ludwig Dr Dipl-Chem
Reichau Ulrich
Liebetanz Erich Dr Dipl-Chem
Original Assignee
Degussa
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 Degussa filed Critical Degussa
Publication of CH396918A publication Critical patent/CH396918A/en

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
    • C07D233/54—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings having two double bonds between ring members or between ring members and non-ring members
    • C07D233/66—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings having two double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • C07D233/72—Two oxygen atoms, e.g. hydantoin

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
CH356260A 1959-04-15 1960-03-30 Process for the preparation of hydantoins which are mono- or disubstituted in the 5-position CH396918A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DED30432A DE1166201B (en) 1959-04-15 1959-04-15 Pressureless process for the preparation of hydantoins which are mono- or disubstituted in the 5-position

Publications (1)

Publication Number Publication Date
CH396918A true CH396918A (en) 1965-08-15

Family

ID=7040491

Family Applications (2)

Application Number Title Priority Date Filing Date
CH356260A CH396918A (en) 1959-04-15 1960-03-30 Process for the preparation of hydantoins which are mono- or disubstituted in the 5-position
CH6776560A CH398618A (en) 1959-04-15 1960-03-30 Process for the preparation of hydantoins which are mono- or disubstituted in the 5-position

Family Applications After (1)

Application Number Title Priority Date Filing Date
CH6776560A CH398618A (en) 1959-04-15 1960-03-30 Process for the preparation of hydantoins which are mono- or disubstituted in the 5-position

Country Status (3)

Country Link
CH (2) CH396918A (en)
DE (1) DE1166201B (en)
GB (1) GB936664A (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2430617A1 (en) * 1974-06-26 1976-01-15 Degussa METHOD FOR PREPARING 3,6-BIS (2-METHYLMERCAPTOAETHYL) -2,5-PIPERAZINDIONE
JPS5217471A (en) * 1975-07-25 1977-02-09 Sagami Chem Res Center Process for preparation of 4- carboxamide-5-cyano-2-imidazolone
US4128719A (en) 1975-07-25 1978-12-05 Sagami Chemical Research Center Process for producing 4-carboxamido-5-cyano-2-imidazolone
DE2744428B2 (en) * 1977-10-03 1981-01-15 Lentia Gmbh, Chem. U. Pharm. Erzeugnisse - Industriebedarf, 8000 Muenchen Process for the continuous production of hydantoin derivatives and apparatus for carrying out the same
DE19547236A1 (en) 1995-12-18 1997-07-03 Degussa Process for the preparation of D, L-methionine or its salt
CN104557721B (en) * 2014-12-30 2017-12-15 沈阳化工研究院有限公司 A kind of method for producing 5,5 DMHs
EP3339289A1 (en) 2016-12-21 2018-06-27 Evonik Degussa GmbH Process for the preparation of methionine
CN108245921B (en) * 2018-03-20 2024-03-12 河北鑫淘沅医药科技有限公司 Evaporation crystallization system and process method of 5, 5-dimethyl hydantoin mother liquor
JP7472137B2 (en) 2018-12-14 2024-04-22 エボニック オペレーションズ ゲーエムベーハー Method for producing methionine

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE566094C (en) * 1929-05-26 1932-12-14 Hermann Bergs Dr Ing Process for the preparation of hydantoins
US2603651A (en) * 1947-12-04 1952-07-15 Ayerst Mckenna & Harrison Process for preparing lysine

Also Published As

Publication number Publication date
GB936664A (en) 1963-09-11
DE1166201B (en) 1964-03-26
CH398618A (en) 1966-03-15

Similar Documents

Publication Publication Date Title
CH370197A (en) Process for the preparation of actinospectacin
CH396918A (en) Process for the preparation of hydantoins which are mono- or disubstituted in the 5-position
CH387047A (en) Process for the preparation of ketosidopurines
CH400144A (en) Process for the preparation of 16-methylene-17a-hydroxy-progesterone-17-acylates
CH404962A (en) Process for the preparation of eupolyoxymethylenes
CH396026A (en) Process for the preparation of haloalkylamines
CH410974A (en) Process for the preparation of substituted benzylamines
CH387606A (en) Process for the preparation of tetrahydroxydiboron
CH399742A (en) Process for the preparation of eupolyoxymethylenes
CH440249A (en) Process for the preparation of polychlorobenzonitriles
CH387029A (en) Process for the preparation of 9a-fluoro-11B-oxy-16a-methylprogesterone
CH417595A (en) Process for the preparation of alkyl-5-alkylisoxazole-3-carboxylates
CH416113A (en) Process for the preparation of eupolyoxymethylenes
CH380730A (en) Process for the preparation of 4-methoxy-2-methyl-6-sulfanilamidopyrimidine
CH372297A (en) Process for the preparation of 4-2-tert-aminomethyl-3-keto-steroids
CH395992A (en) Process for the preparation of 1- (o-tolyloxyethyl) -4-phenyl-piperidine
CH378344A (en) Process for the preparation of 2-amino-anthraquinones
CH412841A (en) Process for the preparation of 2-trifluoromethylbenzophenone
CH388977A (en) Process for the preparation of diphenylamines
AT231980B (en) Process for the preparation of substituted benzylamines
CH387043A (en) Process for the preparation of N- (4-sulfonamidophenyl) -butanesultam
AT221494B (en) Process for the preparation of α-amino-ω-lactams
AT241484B (en) Process for the preparation of glucofuranosides
AT217458B (en) Process for the preparation of chlorobenzonitriles
AT221096B (en) Process for the preparation of 2-hydrazino-3-mercapto-quinoxaline