ES402382A1 - Substituted benzopyrans and processes for their preparation - Google Patents

Substituted benzopyrans and processes for their preparation

Info

Publication number
ES402382A1
ES402382A1 ES402382A ES402382A ES402382A1 ES 402382 A1 ES402382 A1 ES 402382A1 ES 402382 A ES402382 A ES 402382A ES 402382 A ES402382 A ES 402382A ES 402382 A1 ES402382 A1 ES 402382A1
Authority
ES
Spain
Prior art keywords
preparation
group
processes
formula
carbon atoms
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
ES402382A
Other languages
Spanish (es)
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.)
Beecham Group PLC
Original Assignee
Beecham Group PLC
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 Beecham Group PLC filed Critical Beecham Group PLC
Publication of ES402382A1 publication Critical patent/ES402382A1/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
    • C07D311/06—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms directly attached in position 2
    • C07D311/08—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms directly attached in position 2 not hydrogenated in the hetero ring
    • C07D311/16—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms directly attached in position 2 not hydrogenated in the hetero ring substituted in position 7
    • 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
    • C07D311/58—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring other than with oxygen or sulphur atoms in position 2 or 4

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Plural Heterocyclic Compounds (AREA)
  • Pyrane Compounds (AREA)

Abstract

A process for the preparation of substituted benzopyrans of formula (II) ** (Formula) ** where R1 and R2, which may be the same or different, each represent a hydrocarbon group of 1 to 6 carbon atoms; R3 is a non-aromatic hydrocarbon group of 1 to 12 carbon atoms; R4 is an optionally substituted phenyl group and X is a hydrogen atom, a salt ion, an acyl group or an inorganic ester group. (Machine-translation by Google Translate, not legally binding)
ES402382A 1971-05-11 1972-05-04 Substituted benzopyrans and processes for their preparation Expired ES402382A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1422671A GB1389822A (en) 1971-05-11 1971-05-11 Substituted benzopyrans and processes for their preparation

Publications (1)

Publication Number Publication Date
ES402382A1 true ES402382A1 (en) 1975-04-01

Family

ID=10037331

Family Applications (2)

Application Number Title Priority Date Filing Date
ES402381A Expired ES402381A1 (en) 1971-05-11 1972-05-04 Substituted benzopyrans and processes for their preparation
ES402382A Expired ES402382A1 (en) 1971-05-11 1972-05-04 Substituted benzopyrans and processes for their preparation

Family Applications Before (1)

Application Number Title Priority Date Filing Date
ES402381A Expired ES402381A1 (en) 1971-05-11 1972-05-04 Substituted benzopyrans and processes for their preparation

Country Status (9)

Country Link
AU (1) AU466870B2 (en)
BE (1) BE783217A (en)
CA (1) CA996942A (en)
CH (2) CH575940A5 (en)
DE (1) DE2222926A1 (en)
ES (2) ES402381A1 (en)
FR (1) FR2150673B1 (en)
GB (1) GB1389822A (en)
NL (2) NL7205761A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100799246B1 (en) * 2006-12-13 2008-01-29 재단법인서울대학교산학협력재단 Compounds with embedded benzopyran motif for core structures and preparation method thereof

Also Published As

Publication number Publication date
FR2150673B1 (en) 1976-04-16
NL7205761A (en) 1972-11-14
FR2150673A1 (en) 1973-04-13
NL7205760A (en) 1972-11-14
CA996942A (en) 1976-09-14
DE2222926A1 (en) 1972-11-23
AU466870B2 (en) 1975-11-13
ES402381A1 (en) 1975-04-01
AU4219572A (en) 1973-11-15
CH575940A5 (en) 1976-05-31
BE783217A (en) 1972-11-09
CH575939A5 (en) 1976-05-31
GB1389822A (en) 1975-04-09

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