CA1305722C - Process for producing tetrafluorophthalic acid - Google Patents

Process for producing tetrafluorophthalic acid

Info

Publication number
CA1305722C
CA1305722C CA 558779 CA558779A CA1305722C CA 1305722 C CA1305722 C CA 1305722C CA 558779 CA558779 CA 558779 CA 558779 A CA558779 A CA 558779A CA 1305722 C CA1305722 C CA 1305722C
Authority
CA
Canada
Prior art keywords
group
phthalic acid
acid
producing
tetrafluoro
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
CA 558779
Other languages
English (en)
French (fr)
Inventor
Masaaki Shimizu
Haruaki Ito
Nobuo Ishikawa
Toshiaki Shimizu
Utaro Matsushita
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.)
SDS Biotech Corp
Original Assignee
SDS Biotech Corp
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
Priority claimed from JP62178882A external-priority patent/JPS63258442A/ja
Application filed by SDS Biotech Corp filed Critical SDS Biotech Corp
Application granted granted Critical
Publication of CA1305722C publication Critical patent/CA1305722C/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D209/00—Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom
    • C07D209/02—Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom condensed with one carbocyclic ring
    • C07D209/44—Iso-indoles; Hydrogenated iso-indoles
    • C07D209/48—Iso-indoles; Hydrogenated iso-indoles with oxygen atoms in positions 1 and 3, e.g. phthalimide
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Indole Compounds (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
CA 558779 1987-07-20 1988-02-12 Process for producing tetrafluorophthalic acid Expired CA1305722C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP178882/87 1987-07-20
JP62178882A JPS63258442A (ja) 1986-08-18 1987-07-20 テトラフルオロフタル酸の製造方法

Publications (1)

Publication Number Publication Date
CA1305722C true CA1305722C (en) 1992-07-28

Family

ID=16056348

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 558779 Expired CA1305722C (en) 1987-07-20 1988-02-12 Process for producing tetrafluorophthalic acid

Country Status (4)

Country Link
BE (1) BE1002765A4 (en, 2012)
CA (1) CA1305722C (en, 2012)
IN (1) IN166944B (en, 2012)
SE (1) SE502467C2 (en, 2012)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB986892A (en) * 1961-03-22 1965-03-24 Imp Smelting Corp Ltd Tetrafluroobenzene dicarboxylic acids and their derivatives

Also Published As

Publication number Publication date
SE502467C2 (sv) 1995-10-23
SE8800484L (sv) 1989-01-21
IN166944B (en, 2012) 1990-08-11
BE1002765A4 (fr) 1991-06-04
SE8800484D0 (sv) 1988-02-12

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Legal Events

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