GB1353713A – Process for the preparation of squaric acid
– Google Patents
GB1353713A – Process for the preparation of squaric acid
– Google Patents
Process for the preparation of squaric acid
Info
Publication number
GB1353713A
GB1353713A
GB3406772A
GB3406772A
GB1353713A
GB 1353713 A
GB1353713 A
GB 1353713A
GB 3406772 A
GB3406772 A
GB 3406772A
GB 3406772 A
GB3406772 A
GB 3406772A
GB 1353713 A
GB1353713 A
GB 1353713A
Authority
GB
United Kingdom
Prior art keywords
squaric acid
preparation
anodic
july
cathodic reactions
Prior art date
1971-07-24
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
GB3406772A
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.)
OTHERS
Original Assignee
OTHERS
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.)
1971-07-24
Filing date
1972-07-20
Publication date
1974-05-22
1971-07-24
Priority claimed from IT4201971A
external-priority
patent/IT939258B/en
1972-06-06
Priority claimed from IT2527372A
external-priority
patent/IT1006543B/en
1972-07-20
Application filed by OTHERS
filed
Critical
OTHERS
1974-05-22
Publication of GB1353713A
publication
Critical
patent/GB1353713A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
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
Abstract
1353713 Squaric acid R ERCOLI G SILVESTRI S GAMBINO M GUAINAZZI and G FILARDO 20 July 1972 [24 July 1971 6 June 1972] 34067/72 Heading C2C Squaric acid having the formula and/or its complexes and/or its salts is prepared by electrolytically reducing and cyclotetramerizing carbon monoxide in a non-aqueous solution under conditions such that the products of the anodic and cathodic reactions do react and the anodic and cathodic reactions do not interfere in a manner which effects the production of the desired product.
GB3406772A
1971-07-24
1972-07-20
Process for the preparation of squaric acid
Expired
GB1353713A
(en)
Applications Claiming Priority (2)
Application Number
Priority Date
Filing Date
Title
IT4201971A
IT939258B
(en)
1971-07-24
1971-07-24
REDUCING CYCLOTRAMIZATION OF CARBON OXIDE AND PROCEDURE FOR IMPLEMENTING IT
IT2527372A
IT1006543B
(en)
1972-06-06
1972-06-06
IMPROVEMENTS TO THE PROCESS FOR THE PREPARATION OF SQUARIC ACID FOR REDUCING CYCLOTETRAMERIZATION OF CARBON OXIDE
Publications (1)
Publication Number
Publication Date
GB1353713A
true
GB1353713A
(en)
1974-05-22
Family
ID=26328586
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB3406772A
Expired
GB1353713A
(en)
1971-07-24
1972-07-20
Process for the preparation of squaric acid
Country Status (8)
Country
Link
US
(1)
US3833489A
(en)
BE
(1)
BE786650A
(en)
CA
(1)
CA998013A
(en)
CH
(1)
CH577447A5
(en)
DE
(1)
DE2235882A1
(en)
FR
(1)
FR2147073B1
(en)
GB
(1)
GB1353713A
(en)
NL
(1)
NL7209893A
(en)
Families Citing this family (7)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
DE2623836C3
(en)
*
1976-05-28
1978-12-21
Chemische Werke Huels Ag, 4370 Marl
Process for the production of squaric acid
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
0
BE
BE786650D
patent/BE786650A/en
not_active
IP Right Cessation
1972
1972-07-11
CH
CH1038472A
patent/CH577447A5/xx
not_active
IP Right Cessation
1972-07-18
NL
NL7209893A
patent/NL7209893A/xx
not_active
Application Discontinuation
1972-07-18
US
US00272741A
patent/US3833489A/en
not_active
Expired – Lifetime
1972-07-20
GB
GB3406772A
patent/GB1353713A/en
not_active
Expired
1972-07-20
FR
FR7226120A
patent/FR2147073B1/fr
not_active
Expired
1972-07-21
CA
CA147,715A
patent/CA998013A/en
not_active
Expired
1972-07-21
DE
DE2235882A
patent/DE2235882A1/en
active
Pending
Also Published As
Publication number
Publication date
DE2235882A1
(en)
1973-02-01
FR2147073A1
(en)
1973-03-09
NL7209893A
(en)
1973-01-26
CA998013A
(en)
1976-10-05
CH577447A5
(en)
1976-07-15
FR2147073B1
(en)
1976-08-13
BE786650A
(en)
1973-01-24
US3833489A
(en)
1974-09-03
Similar Documents
Publication
Publication Date
Title
CA1017951A
(en)
1977-09-27
Process for production of stainless steel
GB1353713A
(en)
1974-05-22
Process for the preparation of squaric acid
GB1413070A
(en)
1975-11-05
Process for the production of – norfenfluramine and – fenfluramine and salts thereof
GB1382687A
(en)
1975-02-05
Resolution-racemization of alpha-amino-alpha-phenylacetonitrile
GB1371759A
(en)
1974-10-23
Process for preparing diphenols
GB1371187A
(en)
1974-10-23
Process for the production of xylenol
GB1428341A
(en)
1976-03-17
Process for preparing 4,5-diphenyl-oxazol-2-one
ES429000A1
(en)
1977-01-16
Process for preparing 2-chloro-5-sulfamoylbenzoic acids
GB1306331A
(en)
1973-02-07
GB1344965A
(en)
1974-01-23
Process for the production of thymol
GB1439062A
(en)
1976-06-09
Process for preparing alkyl transchrysanthemates and the corres ponding acids
IL47450A
(en)
1976-03-31
2,4-diamino-pyrimidine derivatives and their preparation
ES8107146A1
(en)
1981-10-16
Process for producing 2 hydroxy-naphthalene-3-carboxylic acid
GB1366667A
(en)
1974-09-11
Bicyclic compounds
GB1379719A
(en)
1975-01-08
Method for the production of hydroquinone
GB1340334A
(en)
1973-12-12
Synthesis of benzazetropolones and hence of kynurenic acids
GB1176248A
(en)
1970-01-01
Novel 13-Alkyl-Des-A-10-Aza-Gonenes and Processes for Preparing Hexahydroindanes therefrom
GB1365437A
(en)
1974-09-04
Process for the preparation of 3- /3beta 17beta-dihydroxyandrost-5- en-17alpha-yl/ propionic acid ypsilon-lactone and intermediates formed therein
GB1399065A
(en)
1975-06-25
Process for the production of tetrabromophthalic anhydride
GB1361379A
(en)
1974-07-24
Process for the preparation of ypsilon-aryloxyacetoacetic acid esters
GB1154066A
(en)
1969-06-04
Process for preparing 1-Amino-3-Carboxy-Propane-2-Sulfonic Acid
ES405093A1
(en)
1975-07-16
Procedure for the preparation of escuaric acid and/or its complexes and/or its salts (Machine-translation by Google Translate, not legally binding)
GB1464418A
(en)
1977-02-16
Production of 2-hydroxynaphthalene-3-carboxylic acid
GB1340296A
(en)
1973-12-12
Ph indicator and process for preparing same
GB1344682A
(en)
1974-01-23
Process for producing dl/tryptophane
Legal Events
Date
Code
Title
Description
1974-10-02
PS
Patent sealed [section 19, patents act 1949]
1992-03-18
PCNP
Patent ceased through non-payment of renewal fee
