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GB2145082B - Process for the preparation of 2, 3-dihydro-4h-1-benzopyran-4-one and 2,3,5,6,7,8-hexahydro-4h-1-benzo-pyran-4,5-dione derivativesss - Google Patents

Process for the preparation of 2, 3-dihydro-4h-1-benzopyran-4-one and 2,3,5,6,7,8-hexahydro-4h-1-benzo-pyran-4,5-dione derivativesss

Info

Publication number
GB2145082B
GB2145082B GB08419581A GB8419581A GB2145082B GB 2145082 B GB2145082 B GB 2145082B GB 08419581 A GB08419581 A GB 08419581A GB 8419581 A GB8419581 A GB 8419581A GB 2145082 B GB2145082 B GB 2145082B
Authority
GB
United Kingdom
Prior art keywords
derivativesss
benzopyran
hexahydro
pyran
dione
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
GB08419581A
Other versions
GB2145082A (en
GB8419581D0 (en
Inventor
Lucio Merlini
Anna Arnoldi
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.)
Pfizer Italia SRL
Original Assignee
Farmitalia Carlo Erba SRL
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 Farmitalia Carlo Erba SRL filed Critical Farmitalia Carlo Erba SRL
Publication of GB8419581D0 publication Critical patent/GB8419581D0/en
Publication of GB2145082A publication Critical patent/GB2145082A/en
Application granted granted Critical
Publication of GB2145082B publication Critical patent/GB2145082B/en
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
    • 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
    • C07D311/74—Benzo[b]pyrans, hydrogenated in the carbocyclic ring

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
GB08419581A 1983-08-15 1984-08-01 Process for the preparation of 2, 3-dihydro-4h-1-benzopyran-4-one and 2,3,5,6,7,8-hexahydro-4h-1-benzo-pyran-4,5-dione derivativesss Expired GB2145082B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB838321943A GB8321943D0 (en) 1983-08-15 1983-08-15 Preparation of 2,3-dihydro-benzopyranone derivatives

Publications (3)

Publication Number Publication Date
GB8419581D0 GB8419581D0 (en) 1984-09-05
GB2145082A GB2145082A (en) 1985-03-20
GB2145082B true GB2145082B (en) 1987-03-04

Family

ID=10547327

Family Applications (2)

Application Number Title Priority Date Filing Date
GB838321943A Pending GB8321943D0 (en) 1983-08-15 1983-08-15 Preparation of 2,3-dihydro-benzopyranone derivatives
GB08419581A Expired GB2145082B (en) 1983-08-15 1984-08-01 Process for the preparation of 2, 3-dihydro-4h-1-benzopyran-4-one and 2,3,5,6,7,8-hexahydro-4h-1-benzo-pyran-4,5-dione derivativesss

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB838321943A Pending GB8321943D0 (en) 1983-08-15 1983-08-15 Preparation of 2,3-dihydro-benzopyranone derivatives

Country Status (6)

Country Link
AT (1) ATA258784A (en)
CA (1) CA1262139A (en)
DK (1) DK389484A (en)
FI (1) FI842972A (en)
GB (2) GB8321943D0 (en)
IT (1) IT1179508B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5449794A (en) * 1991-02-15 1995-09-12 Jasmine Fockerman Benzopyran phenol derivatives for use as antibacterial agents
US5861430A (en) * 1991-12-17 1999-01-19 Jasmine Fockerman Benzopyran phenol derivates for use as antibacterial, antiviral or immunostimulating agents
US5591771A (en) * 1991-12-17 1997-01-07 Michel Fockerman Use of propolis components as an adjuvant
CN104262308B (en) * 2014-08-06 2016-02-24 云南中烟工业有限责任公司 A kind of parallel six-ring biphenyl compound and its preparation method and application

Also Published As

Publication number Publication date
FI842972A0 (en) 1984-07-26
ATA258784A (en) 1990-06-15
GB8321943D0 (en) 1983-09-14
GB2145082A (en) 1985-03-20
GB8419581D0 (en) 1984-09-05
DK389484A (en) 1985-02-16
DK389484D0 (en) 1984-08-13
FI842972A (en) 1985-02-16
CA1262139A (en) 1989-10-03
IT8422058A0 (en) 1984-07-26
IT1179508B (en) 1987-09-16

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Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee