BE844193A - Procede de preparation de derives du pyranne - Google Patents

Procede de preparation de derives du pyranne

Info

Publication number
BE844193A
BE844193A BE2055186A BE2055186A BE844193A BE 844193 A BE844193 A BE 844193A BE 2055186 A BE2055186 A BE 2055186A BE 2055186 A BE2055186 A BE 2055186A BE 844193 A BE844193 A BE 844193A
Authority
BE
Belgium
Prior art keywords
pyranne
preparing derivatives
derivatives
preparing
Prior art date
Application number
BE2055186A
Other languages
English (en)
French (fr)
Inventor
T Shono
Y Matsunura
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 filed Critical
Publication of BE844193A publication Critical patent/BE844193A/xx

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D493/00—Heterocyclic compounds containing oxygen atoms as the only ring hetero atoms in the condensed system
    • C07D493/02—Heterocyclic compounds containing oxygen atoms as the only ring hetero atoms in the condensed system in which the condensed system contains two hetero rings
    • C07D493/04—Ortho-condensed systems
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L27/00—Spices; Flavouring agents or condiments; Artificial sweetening agents; Table salts; Dietetic salt substitutes; Preparation or treatment thereof
    • A23L27/20—Synthetic spices, flavouring agents or condiments
BE2055186A 1975-07-17 1976-07-16 Procede de preparation de derives du pyranne BE844193A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50087940A JPS5212166A (en) 1975-07-17 1975-07-17 Process for preparation of 4-pyron derivatives

Publications (1)

Publication Number Publication Date
BE844193A true BE844193A (fr) 1976-11-16

Family

ID=13928886

Family Applications (2)

Application Number Title Priority Date Filing Date
BE2055187A BE844194A (fr) 1975-07-17 1976-07-16 Derives du tetrahydropyranne et produits antibacteriens et antifongiques contenant ces substances
BE2055186A BE844193A (fr) 1975-07-17 1976-07-16 Procede de preparation de derives du pyranne

Family Applications Before (1)

Application Number Title Priority Date Filing Date
BE2055187A BE844194A (fr) 1975-07-17 1976-07-16 Derives du tetrahydropyranne et produits antibacteriens et antifongiques contenant ces substances

Country Status (8)

Country Link
US (1) US4059595A (es)
JP (1) JPS5212166A (es)
BE (2) BE844194A (es)
CH (2) CH617200A5 (es)
DE (2) DE2608932C2 (es)
FR (2) FR2318161A1 (es)
GB (2) GB1498365A (es)
IT (2) IT1063916B (es)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4342697A (en) * 1975-08-28 1982-08-03 Pfizer Inc. Preparation of gamma-pyrones
IE42789B1 (en) * 1975-08-28 1980-10-22 Pfizer Preparation of gamma-pyrones
JPS532468A (en) * 1976-06-15 1978-01-11 Otsuka Chem Co Ltd 2,2-bis(3,4-epoxy-5-oxotetrahydropyrane)-ethers and method of preparing the same
CA1095921A (en) * 1976-08-02 1981-02-17 Thomas M. Brennan Preparation of gamma-pyrones
JPS5353613U (es) * 1976-10-11 1978-05-09
US4390709A (en) * 1976-11-11 1983-06-28 Pfizer Inc. Preparation of gamma-pyrones
US4191693A (en) * 1976-11-12 1980-03-04 Pfizer, Inc. Preparation of gamma-pyrones from 3-substituted furans
JPS5481273A (en) * 1977-12-12 1979-06-28 Shin Etsu Chem Co Ltd Preparation of pyranone halide
US4451661A (en) * 1982-04-26 1984-05-29 Pfizer Inc. Preparation of gamma-pyrone intermediates

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3159652A (en) * 1962-06-13 1964-12-01 Pfizer & Co C Preparation of gamma-pyrones
US3476778A (en) * 1966-05-16 1969-11-04 Monsanto Co Gamma-pyrone synthesis
US3491122A (en) * 1966-09-14 1970-01-20 Monsanto Co Synthesis of 4-pyrones
JPS5145565B1 (es) * 1968-10-12 1976-12-04

Also Published As

Publication number Publication date
DE2609888C3 (de) 1979-05-10
IT1063914B (it) 1985-02-18
CH619700A5 (es) 1980-10-15
GB1496992A (en) 1978-01-05
IT1063916B (it) 1985-02-18
US4059595A (en) 1977-11-22
CH617200A5 (es) 1980-05-14
DE2608932C2 (de) 1982-07-08
JPS5412465B2 (es) 1979-05-23
DE2609888A1 (de) 1977-01-20
FR2317921B1 (es) 1978-09-22
JPS5212166A (en) 1977-01-29
DE2608932A1 (de) 1977-01-20
BE844194A (fr) 1976-11-16
FR2317921A1 (fr) 1977-02-11
GB1498365A (en) 1978-01-18
DE2609888B2 (de) 1978-09-07
FR2318161A1 (fr) 1977-02-11
FR2318161B1 (es) 1978-08-25

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: OTSUKA KAGAKU YAKUHIN K.K.

Effective date: 19910731