GB1341053A - Manufacture of dihydrofuran derivatives - Google Patents

Manufacture of dihydrofuran derivatives

Info

Publication number
GB1341053A
GB1341053A GB1341053DA GB1341053A GB 1341053 A GB1341053 A GB 1341053A GB 1341053D A GB1341053D A GB 1341053DA GB 1341053 A GB1341053 A GB 1341053A
Authority
GB
United Kingdom
Prior art keywords
phenyl
manufacture
halophenyl
dihydrofuran
dihydrofuran derivatives
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.)
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
Publication of GB1341053A publication Critical patent/GB1341053A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
    • C07D307/02—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings
    • C07D307/34—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Abstract

1341053 Process for dihydrofurans IMPERIAL CHEMICAL INDUSTRIES Ltd 30 March 1972 [25 May 1971] 16871/71 Heading C2C The invention comprises making therapeutic compounds (I) by reacting (II) (can exist in the tautomeric form III) with ROH and an acid, esp. H 2 SO 4 (R is C 1 to C 3 alkyl, and one of A and B is phenyl or m-halophenyl and the other is m-halophenyl, or one of A and B is phenyl and the other is 3,5- dihalo-substituted phenyl). A typical product is 2 - (m - chloro - α - methoxycarbonylbenzylidene) - 4 - m - chlorophenyl - 3 - hydroxy-5-oxo- 2,5-dihydrofuran.
GB1341053D 1972-03-30 1972-03-30 Manufacture of dihydrofuran derivatives Expired GB1341053A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1687171 1972-03-30

Publications (1)

Publication Number Publication Date
GB1341053A true GB1341053A (en) 1973-12-19

Family

ID=10085176

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1341053D Expired GB1341053A (en) 1972-03-30 1972-03-30 Manufacture of dihydrofuran derivatives

Country Status (1)

Country Link
GB (1) GB1341053A (en)

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Legal Events

Date Code Title Description
CSNS Application of which complete specification have been accepted and published, but patent is not sealed