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)
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 (fr)
DE (1) DE806458C (fr)
FR (1) FR941418A (fr)
GB (1) GB605999A (fr)

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 (fr)
GB605999A (en) 1948-08-04
DE806458C (de) 1951-06-14

Similar Documents

Publication Publication Date Title
FR1034649A (fr) Procédé perfectionné de préparation de catalyseurs
FR953498A (fr) Procédé de préparation de diacides
CH278596A (fr) Procédé de préparation de polymères.
CH279280A (fr) Procédé de préparation de vinyltrichlorosilane.
FR994939A (fr) Procédé pour la préparation de cétols cycliques
FR1013483A (fr) Procédé de préparation de la farnésylacétone
BE477260A (fr) Procédé de préparation des résines de méthylol-mélamine
FR941418A (fr) Procédé de préparation de lactones cycliques
CH261216A (fr) Procédé de préparation de 2-métanilamido-5-chloropyrimidine.
FR949965A (fr) Procédé de préparation de catalyseurs
CH290491A (fr) Procédé de préparation de bis-hydroxyméthyldiméthylsilane.
FR945198A (fr) Procédé de préparation du 4-méthyl-5-beta-hydroxyéthyl-thiazole
FR942484A (fr) Procédé de préparation de catalyseurs
FR1002904A (fr) Procédé de préparation de la dicyandiamide
FR952878A (fr) Procédé de préparation de 2-4-5-triamino-6-hydroxypyrimidine
FR920279A (fr) Procédé de préparation de 2-sulfanilamidopyrazine
FR1014020A (fr) Procédé de préparation de thymoxy-acétamidines
FR950057A (fr) Procédé de préparation de la lactoflavine
FR949343A (fr) Procédé de préparation de delta? -21-halogéno-choladiènes
FR1002551A (fr) Procédé de préparation de combinaisons aliphatiques sulfurees
FR1007636A (fr) Procédé de préparation de diamines
FR929019A (fr) Procédé de préparation des céto-sulfones asymétriques
FR1002201A (fr) Procédé de préparation de la 5-nitro-furane 2-sulfamide
CH277306A (fr) Procédé de préparation de ptéroylglutamate diméthylique.
FR949703A (fr) Procédé de préparation du cyclohexane