CH552582A - Procede de preparation de nouveaux derives de bezopyranne. - Google Patents

Procede de preparation de nouveaux derives de bezopyranne.

Info

Publication number
CH552582A
CH552582A CH863272A CH863272A CH552582A CH 552582 A CH552582 A CH 552582A CH 863272 A CH863272 A CH 863272A CH 863272 A CH863272 A CH 863272A CH 552582 A CH552582 A CH 552582A
Authority
CH
Switzerland
Prior art keywords
bezopyranne
preparation
new derivatives
derivatives
new
Prior art date
Application number
CH863272A
Other languages
English (en)
French (fr)
Inventor
H Cairns
N H Rogers
Original Assignee
Fisons 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 Fisons Ltd filed Critical Fisons Ltd
Publication of CH552582A publication Critical patent/CH552582A/fr

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
    • C07D311/22—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms directly attached in position 4
    • C07D311/24—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms directly attached in position 4 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 in position 2

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
CH863272A 1971-06-10 1972-06-09 Procede de preparation de nouveaux derives de bezopyranne. CH552582A (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB1983771 1971-06-10
GB4547271 1971-09-30
GB522772*[A GB1382247A (en) 1971-06-10 1972-02-04 Benzopyran derivatives

Publications (1)

Publication Number Publication Date
CH552582A true CH552582A (fr) 1974-08-15

Family

ID=27254604

Family Applications (2)

Application Number Title Priority Date Filing Date
CH863272A CH552582A (fr) 1971-06-10 1972-06-09 Procede de preparation de nouveaux derives de bezopyranne.
CH296774A CH557812A (fr) 1971-06-10 1972-06-09 Procede de preparation de sels d'acides benzopyrannecarbohydroxamiques.

Family Applications After (1)

Application Number Title Priority Date Filing Date
CH296774A CH557812A (fr) 1971-06-10 1972-06-09 Procede de preparation de sels d'acides benzopyrannecarbohydroxamiques.

Country Status (8)

Country Link
CA (1) CA962689A (xx)
CH (2) CH552582A (xx)
DE (1) DE2228075A1 (xx)
FR (1) FR2140603B1 (xx)
GB (1) GB1382247A (xx)
IL (1) IL39467A (xx)
NL (1) NL7208007A (xx)
SE (1) SE375773B (xx)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1448980A (en) * 1973-01-19 1976-09-08 Fisons Ltd Unsymmetrically substituted bis-chromones

Also Published As

Publication number Publication date
CA962689A (en) 1975-02-11
GB1382247A (en) 1975-01-29
FR2140603A1 (xx) 1973-01-19
DE2228075A1 (de) 1972-12-21
IL39467A (en) 1974-12-31
IL39467A0 (en) 1972-07-26
CH557812A (fr) 1975-01-15
FR2140603B1 (xx) 1976-03-05
SE375773B (xx) 1975-04-28
NL7208007A (xx) 1972-12-12

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Legal Events

Date Code Title Description
PL Patent ceased