ES453593A1 - Un procedimiento para la preparacion de derivados de benzo- pirano. - Google Patents

Un procedimiento para la preparacion de derivados de benzo- pirano.

Info

Publication number
ES453593A1
ES453593A1 ES453593A ES453593A ES453593A1 ES 453593 A1 ES453593 A1 ES 453593A1 ES 453593 A ES453593 A ES 453593A ES 453593 A ES453593 A ES 453593A ES 453593 A1 ES453593 A1 ES 453593A1
Authority
ES
Spain
Prior art keywords
formula
hydrogen
preparation
derivatives
benzopyran derivatives
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
ES453593A
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.)
Fisons Ltd
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 ES453593A1 publication Critical patent/ES453593A1/es
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
    • C07D311/22—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)
  • Plural Heterocyclic Compounds (AREA)
  • Pyrane Compounds (AREA)
ES453593A 1975-11-25 1976-11-24 Un procedimiento para la preparacion de derivados de benzo- pirano. Expired ES453593A1 (es)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB4832175 1975-11-25
GB4832275 1975-11-25
GB1473276 1976-04-10

Publications (1)

Publication Number Publication Date
ES453593A1 true ES453593A1 (es) 1977-12-01

Family

ID=27257160

Family Applications (1)

Application Number Title Priority Date Filing Date
ES453593A Expired ES453593A1 (es) 1975-11-25 1976-11-24 Un procedimiento para la preparacion de derivados de benzo- pirano.

Country Status (9)

Country Link
JP (1) JPS5265273A (es)
CA (1) CA1076592A (es)
CH (1) CH618435A5 (es)
DK (1) DK530076A (es)
ES (1) ES453593A1 (es)
FI (1) FI763347A (es)
NO (1) NO146498C (es)
PT (1) PT65881B (es)
SE (1) SE425313B (es)

Also Published As

Publication number Publication date
PT65881A (fr) 1976-12-01
NO146498B (no) 1982-07-05
JPS5265273A (en) 1977-05-30
CH618435A5 (en) 1980-07-31
PT65881B (fr) 1978-10-12
SE7613152L (sv) 1977-05-26
CA1076592A (en) 1980-04-29
SE425313B (sv) 1982-09-20
NO146498C (no) 1982-10-13
FI763347A (es) 1977-05-26
DK530076A (da) 1977-05-26
NO763856L (es) 1977-05-26

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19981103