CA998013A - Process for the preparation of squaric acid by reductive cyclotetramerization of carbon monoxide - Google Patents

Process for the preparation of squaric acid by reductive cyclotetramerization of carbon monoxide

Info

Publication number
CA998013A
CA998013A CA147,715A CA147715A CA998013A CA 998013 A CA998013 A CA 998013A CA 147715 A CA147715 A CA 147715A CA 998013 A CA998013 A CA 998013A
Authority
CA
Canada
Prior art keywords
cyclotetramerization
reductive
preparation
carbon monoxide
squaric acid
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
CA147,715A
Other languages
English (en)
Other versions
CA147715S (en
Inventor
Giuseppe Filardo
Giuseppe Silvestri
Salvatore Gambino
Raffaele Ercoli
Mauro Guainazzi
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
Priority claimed from IT4201971A external-priority patent/IT939258B/it
Priority claimed from IT2527372A external-priority patent/IT1006543B/it
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of CA998013A publication Critical patent/CA998013A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B3/00—Electrolytic production of organic compounds
    • C25B3/20—Processes
    • C25B3/29—Coupling reactions

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
CA147,715A 1971-07-24 1972-07-21 Process for the preparation of squaric acid by reductive cyclotetramerization of carbon monoxide Expired CA998013A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT4201971A IT939258B (it) 1971-07-24 1971-07-24 Ciclotetramizzazione riduttiva del l ossido di carbonio e procedimen to per attuarla
IT2527372A IT1006543B (it) 1972-06-06 1972-06-06 Miglioramenti al processo per la preparazione dell acido squarico per ciclotetramerizzazione ridut tiva dell ossido di carbonio

Publications (1)

Publication Number Publication Date
CA998013A true CA998013A (en) 1976-10-05

Family

ID=26328586

Family Applications (1)

Application Number Title Priority Date Filing Date
CA147,715A Expired CA998013A (en) 1971-07-24 1972-07-21 Process for the preparation of squaric acid by reductive cyclotetramerization of carbon monoxide

Country Status (8)

Country Link
US (1) US3833489A (xx)
BE (1) BE786650A (xx)
CA (1) CA998013A (xx)
CH (1) CH577447A5 (xx)
DE (1) DE2235882A1 (xx)
FR (1) FR2147073B1 (xx)
GB (1) GB1353713A (xx)
NL (1) NL7209893A (xx)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2623836C3 (de) * 1976-05-28 1978-12-21 Chemische Werke Huels Ag, 4370 Marl Verfahren zur Herstellung von Quadratsäure
US4104308A (en) * 1976-06-21 1978-08-01 International Business Machines Corporation Synthesis of squaric acid
US4461681A (en) * 1983-05-31 1984-07-24 The Halcon Sd Group, Inc. Process for the preparation of squaric acid by the electrolysis of carbon monoxide in anhydrous aliphatic nitrile solvent media
US4508803A (en) * 1983-12-05 1985-04-02 Xerox Corporation Photoconductive devices containing novel benzyl fluorinated squaraine compositions
US4523980A (en) * 1984-08-31 1985-06-18 The Halcon Sd Group, Inc. Process for the recovery of high purity squaric acid
US4834858A (en) * 1988-03-23 1989-05-30 Montvale Process Company, Inc. Electrolytic reactor
IE65907B1 (en) * 1990-02-26 1995-11-29 Lonza Ag New 3-hydroxy-2-cyclobuten-1-one salts their preparation and use

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3059030A (en) * 1959-06-15 1962-10-16 Minnesota Mining & Mfg Diketocyclobutenediol and alkali metal salts thereof

Also Published As

Publication number Publication date
GB1353713A (en) 1974-05-22
BE786650A (fr) 1973-01-24
FR2147073B1 (xx) 1976-08-13
DE2235882A1 (de) 1973-02-01
NL7209893A (xx) 1973-01-26
CH577447A5 (xx) 1976-07-15
FR2147073A1 (xx) 1973-03-09
US3833489A (en) 1974-09-03

Similar Documents

Publication Publication Date Title
CA965100A (en) Process for the preparation of acrylic acid
EG10760A (en) Process for the preparation of 4-phenoxy-phenoxy-alkane-carboxylic acid derivatives
CA926871A (en) Process for the manufacture of benzylphosphonates
CA995693A (en) Process for the preparation of dihydroxybenzenes
CA980794A (en) Process for the production of (+)-cis-, (+)-trans-mixed chrysanthemic acid
CA977759A (en) Process for producing tri-iodinated n-methyl-dicarboxylic acid anilides
CA998013A (en) Process for the preparation of squaric acid by reductive cyclotetramerization of carbon monoxide
CA947042A (en) Process for production of carbon black
YU249172A (en) Process for producing the dimethylester of terephalic acid
CA983518A (en) Process for the preparation of terephthalic acid
CA950477A (en) Catalytic process for the preparation of acrolein
CA973534A (en) Process for production of activated carbon
CA982582A (en) Process for the preparation of quinoxaline di-n-oxides
IL36229A (en) Process for the production of carbon black
CA975379A (en) Process for the production of thiodipropionic acid compounds
CA975795A (en) Process for the production of trans-chrysanthemic acid
CA942766A (en) Process for the manufacture of 2-chloroethane-phosphonic acid
CA952918A (en) Process for the preparation of acetic acid
CA954137A (en) Process for the total synthesis of elenolic acid, analogs thereof and intermediates
CA1006183A (en) Process for the production of p-phenylenediamines
CA950850A (en) Process for producing l-arginine by fermentation
CA876744A (en) Process for the preparation of amido-sulfonic acid
CA861557A (en) Process for the preparation of 4-aminomethyl-cyclohexane-1-carboxylic acid
CA884292A (en) Process for producing 2-thiouridylic acid
CA884293A (en) Process for producing diaminopimelic acid