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GB2001310A - Process for the preparation of 5,6 Diaminouracil - Google Patents

Process for the preparation of 5,6 Diaminouracil

Info

Publication number
GB2001310A
GB2001310A GB787827985A GB7827985A GB2001310A GB 2001310 A GB2001310 A GB 2001310A GB 787827985 A GB787827985 A GB 787827985A GB 7827985 A GB7827985 A GB 7827985A GB 2001310 A GB2001310 A GB 2001310A
Authority
GB
United Kingdom
Prior art keywords
diaminouracil
preparation
nitroso
aminouracil
reaction medium
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.)
Granted
Application number
GB787827985A
Other versions
GB2001310B (en
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.)
Lonza AG
Original Assignee
Lonza AG
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 Lonza AG filed Critical Lonza AG
Publication of GB2001310A publication Critical patent/GB2001310A/en
Application granted granted Critical
Publication of GB2001310B publication Critical patent/GB2001310B/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D239/00—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings
    • C07D239/02—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings
    • C07D239/24—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members
    • C07D239/28—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more 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, directly attached to ring carbon atoms
    • C07D239/46—Two or more oxygen, sulphur or nitrogen atoms
    • C07D239/52—Two oxygen atoms
    • C07D239/54—Two oxygen atoms as doubly bound oxygen atoms or as unsubstituted hydroxy radicals
    • C07D239/545—Two oxygen atoms as doubly bound oxygen atoms or as unsubstituted hydroxy radicals with other hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, directly attached to ring carbon atoms

Landscapes

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

Abstract

The present invention provides a process for the preparation of 5,6- diaminouracil from 5- nitroso-6-aminouracil,wherein the nitroso group of 5-nitroso-6-aminouracil is catalytically hydrogenated using an inorganic base as the reaction medium.
GB787827985A 1977-07-20 1978-06-27 Process for the preparation of 5,6-diaminouracil Expired GB2001310B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH897877A CH629788A5 (en) 1977-07-20 1977-07-20 PROCESS FOR PRODUCTION OF 5,6-DIAMINOURACIL.

Publications (2)

Publication Number Publication Date
GB2001310A true GB2001310A (en) 1979-01-31
GB2001310B GB2001310B (en) 1982-01-27

Family

ID=4346962

Family Applications (1)

Application Number Title Priority Date Filing Date
GB787827985A Expired GB2001310B (en) 1977-07-20 1978-06-27 Process for the preparation of 5,6-diaminouracil

Country Status (5)

Country Link
CH (1) CH629788A5 (en)
DE (1) DE2831037A1 (en)
FR (1) FR2398064A1 (en)
GB (1) GB2001310B (en)
IT (1) IT7850343A0 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0619310A1 (en) * 1993-04-07 1994-10-12 Boehringer Ingelheim Kg Improved process for the preparation of 1,3-dimethyl-4,5-diamino-uracil
CN104003941A (en) * 2014-06-13 2014-08-27 石药集团新诺威制药股份有限公司 Preparation method of caffeine intermediate N,N-1,3-dimethyl-4,5-diamido urazine

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8929208D0 (en) * 1989-12-27 1990-02-28 Almirall Lab New xanthine derivatives
CN101003512B (en) * 2007-01-22 2011-03-16 上海化学试剂研究所 Method for preparing methylamino uracil

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2646432A (en) * 1947-01-13 1953-07-21 Mallinckrodt Chemical Works Method of preparing 2, 6-diketopurines

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0619310A1 (en) * 1993-04-07 1994-10-12 Boehringer Ingelheim Kg Improved process for the preparation of 1,3-dimethyl-4,5-diamino-uracil
US5510484A (en) * 1993-04-07 1996-04-23 Boehringer Ingelheim Kg Process for preparing 1,3-dimethy-4,5-diaminouracil
CN104003941A (en) * 2014-06-13 2014-08-27 石药集团新诺威制药股份有限公司 Preparation method of caffeine intermediate N,N-1,3-dimethyl-4,5-diamido urazine
CN104003941B (en) * 2014-06-13 2016-05-04 石药集团新诺威制药股份有限公司 A kind of caffeine intermediate N, N-1,3-dimethyl-4, the preparation method of 5-diaminourea piperazine

Also Published As

Publication number Publication date
DE2831037A1 (en) 1979-02-08
GB2001310B (en) 1982-01-27
FR2398064A1 (en) 1979-02-16
CH629788A5 (en) 1982-05-14
IT7850343A0 (en) 1978-07-18

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee