GB1305524A - - Google Patents

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Publication number
GB1305524A
GB1305524A GB1305524DA GB1305524A GB 1305524 A GB1305524 A GB 1305524A GB 1305524D A GB1305524D A GB 1305524DA GB 1305524 A GB1305524 A GB 1305524A
Authority
GB
United Kingdom
Prior art keywords
pyridones
hidrogenados
disolventes
pyrimidones
bromic
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
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 filed Critical
Publication of GB1305524A publication Critical patent/GB1305524A/en
Expired legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
    • C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
    • C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
    • C07D213/60—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom 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
    • C07D213/62—Oxygen or sulfur atoms
    • C07D213/63—One oxygen atom
    • C07D213/68—One oxygen atom attached in position 4

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

1305524 Halogenation process DISOLVENTES HIDROGENADOS SA 5 March 1971 6171/71 Heading C2C Pyridones, quinolones and pyrimidones are ring-halogenated by reaction with chloric, bromic or iodic acid, or an alkali metal salt thereof, in the presence of the hydrohalic acid corresponding to the halogen to be introduced. Products exemplified are 3,5-dichloro- and 3,5- dibromo-2,6-dimethyl-4-pyridones.
GB1305524D 1971-03-05 1971-03-05 Expired GB1305524A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB617171 1971-03-05

Publications (1)

Publication Number Publication Date
GB1305524A true GB1305524A (en) 1973-02-07

Family

ID=9809711

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1305524D Expired GB1305524A (en) 1971-03-05 1971-03-05

Country Status (1)

Country Link
GB (1) GB1305524A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105753776A (en) * 2015-12-14 2016-07-13 浙江工业大学 Preparation method of 2, 6-dimethyl-3, 5-dichloro-4-hydroxypyridine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105753776A (en) * 2015-12-14 2016-07-13 浙江工业大学 Preparation method of 2, 6-dimethyl-3, 5-dichloro-4-hydroxypyridine
CN105753776B (en) * 2015-12-14 2018-05-22 浙江工业大学 A kind of preparation method of two chloro- 4- pyridones of 2,6- dimethyl -3,5-

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees