GB1265116A - - Google Patents

Info

Publication number
GB1265116A
GB1265116A GB1265116DA GB1265116A GB 1265116 A GB1265116 A GB 1265116A GB 1265116D A GB1265116D A GB 1265116DA GB 1265116 A GB1265116 A GB 1265116A
Authority
GB
United Kingdom
Prior art keywords
pyrazine
amino
chloro
eisai
heading
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 GB1265116A publication Critical patent/GB1265116A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D241/00—Heterocyclic compounds containing 1,4-diazine or hydrogenated 1,4-diazine rings
    • C07D241/02—Heterocyclic compounds containing 1,4-diazine or hydrogenated 1,4-diazine rings not condensed with other rings
    • C07D241/10—Heterocyclic compounds containing 1,4-diazine or hydrogenated 1,4-diazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members
    • C07D241/14—Heterocyclic compounds containing 1,4-diazine or hydrogenated 1,4-diazine rings not condensed with other rings having three 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
    • C07D241/20—Nitrogen atoms

Abstract

1,265,116. 2 - Amino - 3 - chloro - pyrazine. EISAI K.K. 5 June, 1970, No. 27323/70. Heading C2C. 2 - Amino - 3 - chloro - pyrazine is prepared by reaction of 2-amino-3-hydroxy-pyrazine with phosphorus oxychloride in the presence of dimethyl formamide or tetramethyl urea.
GB1265116D 1970-06-05 1970-06-05 Expired GB1265116A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2732370 1970-06-05

Publications (1)

Publication Number Publication Date
GB1265116A true GB1265116A (en) 1972-03-01

Family

ID=10257720

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1265116D Expired GB1265116A (en) 1970-06-05 1970-06-05

Country Status (1)

Country Link
GB (1) GB1265116A (en)

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years