GB668412A - New quinoxaline derivatives - Google Patents

New quinoxaline derivatives

Info

Publication number
GB668412A
GB668412A GB19100/49A GB1910049A GB668412A GB 668412 A GB668412 A GB 668412A GB 19100/49 A GB19100/49 A GB 19100/49A GB 1910049 A GB1910049 A GB 1910049A GB 668412 A GB668412 A GB 668412A
Authority
GB
United Kingdom
Prior art keywords
oxide
dimethylquinoxaline
chloro
propylquinoxaline
methyl
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
GB19100/49A
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries Ltd
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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB19100/49A priority Critical patent/GB668412A/en
Publication of GB668412A publication Critical patent/GB668412A/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
    • C07D241/36—Heterocyclic compounds containing 1,4-diazine or hydrogenated 1,4-diazine rings condensed with carbocyclic rings or ring systems
    • C07D241/38—Heterocyclic compounds containing 1,4-diazine or hydrogenated 1,4-diazine rings condensed with carbocyclic rings or ring systems with only hydrogen or carbon atoms directly attached to the ring nitrogen atoms
    • C07D241/40—Benzopyrazines
    • C07D241/44—Benzopyrazines 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 carbon atoms of the hetero ring
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D241/00—Heterocyclic compounds containing 1,4-diazine or hydrogenated 1,4-diazine rings
    • C07D241/36—Heterocyclic compounds containing 1,4-diazine or hydrogenated 1,4-diazine rings condensed with carbocyclic rings or ring systems
    • C07D241/38—Heterocyclic compounds containing 1,4-diazine or hydrogenated 1,4-diazine rings condensed with carbocyclic rings or ring systems with only hydrogen or carbon atoms directly attached to the ring nitrogen atoms
    • C07D241/40—Benzopyrazines
    • C07D241/42—Benzopyrazines with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to carbon atoms of the hetero ring

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Plural Heterocyclic Compounds (AREA)

Abstract

The invention comprises quinoxaline-di-N-oxides of the formula <FORM:0668412/IV (b)/1> in which X and Y are alkyl groups having less than 5 carbon atoms and Z is hydrogen, cyano, methoxy or halogen, and their preparation from the corresponding quinoxalines or their mono-N-oxides by oxidation with per-acids. The quinoxalines may be prepared by reacting the appropriately substituted o-phenylenediamine with the appropriate 1,2-diketone, e.g. 6-chloro-2,3-dimethylquinoxaline is prepared by reacting 4-chloro-1,2-phenylenediamine with diacetyl in aqueous acetic acid medium. Examples are given of the preparation of 2,3-dimethylquinoxaline - 1,4 - di - N - oxide; 6 - chloro-, 6 - bromo- and 6-cyano-2,3-dimethylquinoxaline-1,4 - di - N - oxide; 2 - methyl - 3 - ethylquinoxaline - 1,4 - di - N - oxide; 2,3 - diethylquinoxaline - 1,4 - di - N - oxide; 2,3 - di - n - propylquinoxaline - 1,4 - di - N - oxide; 2 - methyl - 3 - n - propylquinoxaline - 1,4 - di - N - oxide; 2 - methyl - 3 - isopropylquinoxaline - 1,4 - di - N - oxide; 6 - chloro - 2,3 - di - n - propylquinoxaline - 1,4 - di - N - oxide; and 6 - methoxy - 2,3 - dimethylquinoxaline - 1,4 - di-N-oxide.
GB19100/49A 1949-07-20 1949-07-20 New quinoxaline derivatives Expired GB668412A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB19100/49A GB668412A (en) 1949-07-20 1949-07-20 New quinoxaline derivatives

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB19100/49A GB668412A (en) 1949-07-20 1949-07-20 New quinoxaline derivatives

Publications (1)

Publication Number Publication Date
GB668412A true GB668412A (en) 1952-03-19

Family

ID=10123769

Family Applications (1)

Application Number Title Priority Date Filing Date
GB19100/49A Expired GB668412A (en) 1949-07-20 1949-07-20 New quinoxaline derivatives

Country Status (1)

Country Link
GB (1) GB668412A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0020836A1 (en) * 1979-06-18 1981-01-07 Eli Lilly And Company Antiviral combinations

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0020836A1 (en) * 1979-06-18 1981-01-07 Eli Lilly And Company Antiviral combinations

Similar Documents

Publication Publication Date Title
GB918128A (en) Pyrazolino-benzimidazole colour couples
Pätzold et al. Dehydrogenations using benzofuroxan as oxidant
GB716327A (en) New heterocyclic compounds
GB668412A (en) New quinoxaline derivatives
GB679678A (en) Improvements in or relating to the production of 3-amino pyrazolines
GB763044A (en) Pteridin derivatives
GB603267A (en) Manufacture of stilbene dyestuffs and of starting materials therefor
US2050704A (en) Process of producing n-substitution products of 1, 4-diaminoanthraquinones
US3897421A (en) Organic compounds
US1886485A (en) Dbs to the eibm
GB1459543A (en) Aldehydes of 2-hydroxy-naphthalene-3-carboxylic acid arylides and process for preparing them
GB894428A (en) Process for the manufacture of basically substituted phthalazines
GB962017A (en) New water-soluble leuco-sulphuric acid ester salts of vat dyestuffs of the anthraquinone series and a process of the anthraquinone series and a process of making same
GB615837A (en) New wool dyestuffs
GB1080009A (en) Benzimidazoles
GB595631A (en) Improvements in or relating to the preparation of piperidine derivatives
GB606037A (en) Aryl amines and process of making the same
GB544190A (en) Quinoline derivatives
GB729348A (en) Hydrazones of heterocyclic aldehydes
GB628410A (en) A process for the manufacture of isoalloxazines
GB732521A (en) Process for the manufacture of new dihydrazino compounds
GB927497A (en) New 5-nitrofuran derivatives
GB562641A (en) Manufacture of substantive disazo dyestuffs
Grandberg et al. Indoles: XVII. Method fop the synthesis of 2-methyl-1.7-di-and 2-methyl-1.7-trimethylenetryptamines and homotryptamines
GB703484A (en) New quinolinium salts