FR2216280A1 - Bis(2-carboxychromonyloxy)alkanes and -oxoalkanes - prepd by reacting dihaloalkanes or dihalooxoalkanes with 2-carboxy-hydrochromones - Google Patents

Bis(2-carboxychromonyloxy)alkanes and -oxoalkanes - prepd by reacting dihaloalkanes or dihalooxoalkanes with 2-carboxy-hydrochromones

Info

Publication number
FR2216280A1
FR2216280A1 FR7303977A FR7303977A FR2216280A1 FR 2216280 A1 FR2216280 A1 FR 2216280A1 FR 7303977 A FR7303977 A FR 7303977A FR 7303977 A FR7303977 A FR 7303977A FR 2216280 A1 FR2216280 A1 FR 2216280A1
Authority
FR
France
Prior art keywords
oxoalkanes
hydrochromones
dihalooxoalkanes
carboxychromonyloxy
dihaloalkanes
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.)
Granted
Application number
FR7303977A
Other languages
French (fr)
Other versions
FR2216280B3 (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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR7303977A priority Critical patent/FR2216280A1/en
Publication of FR2216280A1 publication Critical patent/FR2216280A1/en
Application granted granted Critical
Publication of FR2216280B3 publication Critical patent/FR2216280B3/fr
Granted 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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

P Prepn of cpds of formula (I): R is alkyl; n is 2, 3, 4 or 5) by reaction of a cpd of formula X.A.X1 (where X,X1 are Cl, Br or I), with two moles of a cpd of formula (II): The process is simplex and cheaper for prep. of antiasthmiatic drugs. The reaction is pref. in an inert solvent in presence of an acid-binding agent.
FR7303977A 1973-02-05 1973-02-05 Bis(2-carboxychromonyloxy)alkanes and -oxoalkanes - prepd by reacting dihaloalkanes or dihalooxoalkanes with 2-carboxy-hydrochromones Granted FR2216280A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7303977A FR2216280A1 (en) 1973-02-05 1973-02-05 Bis(2-carboxychromonyloxy)alkanes and -oxoalkanes - prepd by reacting dihaloalkanes or dihalooxoalkanes with 2-carboxy-hydrochromones

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7303977A FR2216280A1 (en) 1973-02-05 1973-02-05 Bis(2-carboxychromonyloxy)alkanes and -oxoalkanes - prepd by reacting dihaloalkanes or dihalooxoalkanes with 2-carboxy-hydrochromones

Publications (2)

Publication Number Publication Date
FR2216280A1 true FR2216280A1 (en) 1974-08-30
FR2216280B3 FR2216280B3 (en) 1976-01-30

Family

ID=9114342

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7303977A Granted FR2216280A1 (en) 1973-02-05 1973-02-05 Bis(2-carboxychromonyloxy)alkanes and -oxoalkanes - prepd by reacting dihaloalkanes or dihalooxoalkanes with 2-carboxy-hydrochromones

Country Status (1)

Country Link
FR (1) FR2216280A1 (en)

Also Published As

Publication number Publication date
FR2216280B3 (en) 1976-01-30

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Legal Events

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