GB1323555A - Thiophene derivatives - Google Patents

Thiophene derivatives

Info

Publication number
GB1323555A
GB1323555A GB1323555DA GB1323555A GB 1323555 A GB1323555 A GB 1323555A GB 1323555D A GB1323555D A GB 1323555DA GB 1323555 A GB1323555 A GB 1323555A
Authority
GB
United Kingdom
Prior art keywords
methyl
thiophene derivatives
aug
ethyl
hydrogen
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
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.)
May and Baker Ltd
Original Assignee
May and Baker 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 May and Baker Ltd filed Critical May and Baker Ltd
Publication of GB1323555A publication Critical patent/GB1323555A/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
    • C07D333/02—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings
    • C07D333/04—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings not substituted on the ring sulphur atom
    • C07D333/26—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings not substituted on the ring sulphur 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
    • C07D333/38—Carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

1323555 Thiophene derivatives MAY & BAKER Ltd 12 Aug 1970 [14 Aug 1969] 1951/73 Divided out of 1323553 Heading C2C The invention comprises thiophene derivatives of the general formula in which R 1 is an alkyl or alkenyl group containing not more than 10 carbon atoms or a C 5 or C 6 cycloalkyl group, and R 3 is hydrogen, methyl or ethyl, R 1 being other than methyl when R 3 is hydrogen or methyl. They may be prepared by reacting the appropriate mercapto aldehyde with the appropriate cyanoacetic ester in the presence of piperidine in methanol. Examples are given of compounds in which R 3 is H and R 1 is ethyl, n-propyl, isopropyl, n-butyl, cyclohexyl and n-amyl.
GB1323555D 1969-08-14 1969-08-14 Thiophene derivatives Expired GB1323555A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB195173 1969-08-14

Publications (1)

Publication Number Publication Date
GB1323555A true GB1323555A (en) 1973-07-18

Family

ID=9730932

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1323555D Expired GB1323555A (en) 1969-08-14 1969-08-14 Thiophene derivatives

Country Status (1)

Country Link
GB (1) GB1323555A (en)

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Legal Events

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