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CH557812A - PROCESS FOR PREPARING SALTS OF BENZOPYRANNECARBOHYDROXAMIC ACIDS. - Google Patents

PROCESS FOR PREPARING SALTS OF BENZOPYRANNECARBOHYDROXAMIC ACIDS.

Info

Publication number
CH557812A
CH557812A CH296774A CH296774A CH557812A CH 557812 A CH557812 A CH 557812A CH 296774 A CH296774 A CH 296774A CH 296774 A CH296774 A CH 296774A CH 557812 A CH557812 A CH 557812A
Authority
CH
Switzerland
Prior art keywords
benzopyrannecarbohydroxamic
acids
preparing salts
salts
preparing
Prior art date
Application number
CH296774A
Other languages
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 CH557812A publication Critical patent/CH557812A/en

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)
CH296774A 1971-06-10 1972-06-09 PROCESS FOR PREPARING SALTS OF BENZOPYRANNECARBOHYDROXAMIC ACIDS. CH557812A (en)

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
CH557812A true CH557812A (en) 1975-01-15

Family

ID=27254604

Family Applications (2)

Application Number Title Priority Date Filing Date
CH863272A CH552582A (en) 1971-06-10 1972-06-09 PROCESS FOR PREPARATION OF NEW DERIVATIVES OF BEZOPYRANNE.
CH296774A CH557812A (en) 1971-06-10 1972-06-09 PROCESS FOR PREPARING SALTS OF BENZOPYRANNECARBOHYDROXAMIC ACIDS.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
CH863272A CH552582A (en) 1971-06-10 1972-06-09 PROCESS FOR PREPARATION OF NEW DERIVATIVES OF BEZOPYRANNE.

Country Status (8)

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

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
FR2140603A1 (en) 1973-01-19
CA962689A (en) 1975-02-11
GB1382247A (en) 1975-01-29
IL39467A (en) 1974-12-31
SE375773B (en) 1975-04-28
IL39467A0 (en) 1972-07-26
CH552582A (en) 1974-08-15
NL7208007A (en) 1972-12-12
FR2140603B1 (en) 1976-03-05
DE2228075A1 (en) 1972-12-21

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Legal Events

Date Code Title Description
PL Patent ceased