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FR1545420A - Process for the preparation of 2. 3. 5. 6-pyrazine-tetracarboxylic acid dianhydride - Google Patents

Process for the preparation of 2. 3. 5. 6-pyrazine-tetracarboxylic acid dianhydride

Info

Publication number
FR1545420A
FR1545420A FR129927A FR129927A FR1545420A FR 1545420 A FR1545420 A FR 1545420A FR 129927 A FR129927 A FR 129927A FR 129927 A FR129927 A FR 129927A FR 1545420 A FR1545420 A FR 1545420A
Authority
FR
France
Prior art keywords
pyrazine
preparation
tetracarboxylic acid
acid dianhydride
dianhydride
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
FR129927A
Other languages
French (fr)
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.)
Monsanto Co
Original Assignee
Monsanto Co
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 Monsanto Co filed Critical Monsanto Co
Priority to FR129927A priority Critical patent/FR1545420A/en
Application granted granted Critical
Publication of FR1545420A publication Critical patent/FR1545420A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D491/00—Heterocyclic compounds containing in the condensed ring system both one or more rings having oxygen atoms as the only ring hetero atoms and one or more rings having nitrogen atoms as the only ring hetero atoms, not provided for by groups C07D451/00 - C07D459/00, C07D463/00, C07D477/00 or C07D489/00
    • C07D491/12—Heterocyclic compounds containing in the condensed ring system both one or more rings having oxygen atoms as the only ring hetero atoms and one or more rings having nitrogen atoms as the only ring hetero atoms, not provided for by groups C07D451/00 - C07D459/00, C07D463/00, C07D477/00 or C07D489/00 in which the condensed system contains three hetero rings
    • C07D491/14—Ortho-condensed systems

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
FR129927A 1966-11-28 1967-11-28 Process for the preparation of 2. 3. 5. 6-pyrazine-tetracarboxylic acid dianhydride Expired FR1545420A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR129927A FR1545420A (en) 1966-11-28 1967-11-28 Process for the preparation of 2. 3. 5. 6-pyrazine-tetracarboxylic acid dianhydride

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US59720266A 1966-11-28 1966-11-28
FR129927A FR1545420A (en) 1966-11-28 1967-11-28 Process for the preparation of 2. 3. 5. 6-pyrazine-tetracarboxylic acid dianhydride

Publications (1)

Publication Number Publication Date
FR1545420A true FR1545420A (en) 1968-11-08

Family

ID=26181178

Family Applications (1)

Application Number Title Priority Date Filing Date
FR129927A Expired FR1545420A (en) 1966-11-28 1967-11-28 Process for the preparation of 2. 3. 5. 6-pyrazine-tetracarboxylic acid dianhydride

Country Status (1)

Country Link
FR (1) FR1545420A (en)

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