GB2005249A - Oxidation process for the preparation of certain tetrahydro-7- oxobenzo(b)-thiophene and tetrahydro- 4-oxo-naphthalene compounds. - Google Patents

Oxidation process for the preparation of certain tetrahydro-7- oxobenzo(b)-thiophene and tetrahydro- 4-oxo-naphthalene compounds.

Info

Publication number
GB2005249A
GB2005249A GB7834025A GB7834025A GB2005249A GB 2005249 A GB2005249 A GB 2005249A GB 7834025 A GB7834025 A GB 7834025A GB 7834025 A GB7834025 A GB 7834025A GB 2005249 A GB2005249 A GB 2005249A
Authority
GB
United Kingdom
Prior art keywords
tetrahydro
oxo
preparation
oxobenzo
thiophene
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
GB7834025A
Other versions
GB2005249B (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.)
Wyeth Holdings LLC
Original Assignee
American Cyanamid Co
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 American Cyanamid Co filed Critical American Cyanamid Co
Publication of GB2005249A publication Critical patent/GB2005249A/en
Application granted granted Critical
Publication of GB2005249B publication Critical patent/GB2005249B/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D333/00—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom
    • C07D333/50—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom condensed with carbocyclic rings or ring systems
    • C07D333/52—Benzo[b]thiophenes; Hydrogenated benzo[b]thiophenes
    • C07D333/54—Benzo[b]thiophenes; Hydrogenated benzo[b]thiophenes with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to carbon atoms of the hetero ring
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23K—FODDER
    • A23K20/00—Accessory food factors for animal feeding-stuffs
    • A23K20/10—Organic substances
    • A23K20/111—Aromatic compounds
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23K—FODDER
    • A23K20/00—Accessory food factors for animal feeding-stuffs
    • A23K20/10—Organic substances
    • A23K20/116—Heterocyclic compounds
    • A23K20/121—Heterocyclic compounds containing oxygen or sulfur as hetero atom

Abstract

A process for the preparation of oxo-compounds of the formulae: <IMAGE> wherein R1 and R2 are defined organic groups, comprises oxidising a compound of the formula: <IMAGE> with an inorganic permanganate in an aqueous solvent in the presence of a buffer. Growth-promoting compounds can be prepared from the compounds of formulae I and II.
GB7834025A 1977-09-16 1978-08-21 Oxidation process Expired GB2005249B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US83401477A 1977-09-16 1977-09-16

Publications (2)

Publication Number Publication Date
GB2005249A true GB2005249A (en) 1979-04-19
GB2005249B GB2005249B (en) 1982-05-12

Family

ID=25265882

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7834025A Expired GB2005249B (en) 1977-09-16 1978-08-21 Oxidation process

Country Status (3)

Country Link
AU (1) AU519511B2 (en)
GB (1) GB2005249B (en)
ZA (1) ZA784656B (en)

Also Published As

Publication number Publication date
GB2005249B (en) 1982-05-12
AU3894878A (en) 1980-02-21
AU519511B2 (en) 1981-12-10
ZA784656B (en) 1979-08-29

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Legal Events

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PG Patent granted