FR941418A - Procédé de préparation de lactones cycliques - Google Patents

Procédé de préparation de lactones cycliques

Info

Publication number
FR941418A
FR941418A FR941418DA FR941418A FR 941418 A FR941418 A FR 941418A FR 941418D A FR941418D A FR 941418DA FR 941418 A FR941418 A FR 941418A
Authority
FR
France
Prior art keywords
cyclic lactones
preparing cyclic
preparing
lactones
cyclic
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
Other languages
English (en)
French (fr)
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.)
Ward Blenkinsop and Co Ltd
Original Assignee
Ward Blenkinsop and Co 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 Ward Blenkinsop and Co Ltd filed Critical Ward Blenkinsop and Co Ltd
Application granted granted Critical
Publication of FR941418A publication Critical patent/FR941418A/fr
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D311/00—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings
    • C07D311/02—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings ortho- or peri-condensed with carbocyclic rings or ring systems
    • C07D311/04—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring
    • C07D311/42—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms in positions 2 and 4
    • C07D311/44—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms in positions 2 and 4 with one hydrogen atom in position 3
    • C07D311/46—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms in positions 2 and 4 with one hydrogen atom in position 3 unsubstituted in the carbocyclic ring

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Pyrane Compounds (AREA)
FR941418D 1946-02-07 1947-02-06 Procédé de préparation de lactones cycliques Expired FR941418A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB385146A GB605999A (en) 1946-02-07 1946-02-07 Process for the production of coumarins

Publications (1)

Publication Number Publication Date
FR941418A true FR941418A (fr) 1949-01-11

Family

ID=9766120

Family Applications (1)

Application Number Title Priority Date Filing Date
FR941418D Expired FR941418A (fr) 1946-02-07 1947-02-06 Procédé de préparation de lactones cycliques

Country Status (4)

Country Link
BE (1) BE470996A (en, 2012)
DE (1) DE806458C (en, 2012)
FR (1) FR941418A (en, 2012)
GB (1) GB605999A (en, 2012)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE960813C (de) * 1951-06-20 1957-03-28 Distillers Co Yeast Ltd Verfahren zur Herstellung von ungesaettigten ª†- und ª€-Laktonen

Also Published As

Publication number Publication date
BE470996A (en, 2012)
DE806458C (de) 1951-06-14
GB605999A (en) 1948-08-04

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