FR2381735A1 - PROCESS FOR THE MANUFACTURE OF A-CETOCARBOXYLIC ACIDS AND PROCESSES THEREFORE OBTAINED - Google Patents

PROCESS FOR THE MANUFACTURE OF A-CETOCARBOXYLIC ACIDS AND PROCESSES THEREFORE OBTAINED

Info

Publication number
FR2381735A1
FR2381735A1 FR7717128A FR7717128A FR2381735A1 FR 2381735 A1 FR2381735 A1 FR 2381735A1 FR 7717128 A FR7717128 A FR 7717128A FR 7717128 A FR7717128 A FR 7717128A FR 2381735 A1 FR2381735 A1 FR 2381735A1
Authority
FR
France
Prior art keywords
manufacture
formula
acid
degrees
cetocarboxylic
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
FR7717128A
Other languages
French (fr)
Other versions
FR2381735B1 (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.)
Evonik Operations GmbH
Original Assignee
Degussa GmbH
Deutsche Gold und Silber Scheideanstalt
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 Degussa GmbH, Deutsche Gold und Silber Scheideanstalt filed Critical Degussa GmbH
Publication of FR2381735A1 publication Critical patent/FR2381735A1/en
Application granted granted Critical
Publication of FR2381735B1 publication Critical patent/FR2381735B1/fr
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/06—Preparation of carboxylic acids or their salts, halides or anhydrides from carboxylic acid amides

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

a. Procédé par saponification de cyanures d'acyle. b. Procédé caractérisé en ce que l'on traite d'abord les cyanures d'acyle, de la formule Il dans un solvant organique ou un mélange de ces solvants, liquide et inerte, dans les conditions de la réaction, d'abord avec de l'acide chlorhydrique gazeux, et ensuite, à une température se situant entre - 70 degrés C et + 70 degrés C environ, avec de l'eau et transforme l'amide d'acide carboxylique de formule III ainsi formé, éventuellement après séparation intermédiaire, d'une façon connue, par hydrolyse acide ou alcaline, en acide alpha -cétocarboxylique de la formule I. c. Procédé applicable à la fabrication de produits intermédiaires pour transamination ou pour herbicides.at. Process by saponification of acyl cyanides. b. Process characterized in that the acyl cyanides of formula II are first treated in an organic solvent or a mixture of these solvents, liquid and inert, under the reaction conditions, first with 'gaseous hydrochloric acid, and then, at a temperature between - 70 degrees C and + 70 degrees C approximately, with water and transforms the carboxylic acid amide of formula III thus formed, optionally after intermediate separation, in a known manner, by acid or alkaline hydrolysis, to alpha-ketocarboxylic acid of formula I. c. Process applicable to the manufacture of intermediates for transamination or for herbicides.

FR7717128A 1977-02-25 1977-06-03 PROCESS FOR THE MANUFACTURE OF A-CETOCARBOXYLIC ACIDS AND PROCESSES THEREFORE OBTAINED Granted FR2381735A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2708185A DE2708185C3 (en) 1977-02-25 1977-02-25 Process for the preparation of α-ketocarboxylic acids

Publications (2)

Publication Number Publication Date
FR2381735A1 true FR2381735A1 (en) 1978-09-22
FR2381735B1 FR2381735B1 (en) 1980-01-18

Family

ID=6002153

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7717128A Granted FR2381735A1 (en) 1977-02-25 1977-06-03 PROCESS FOR THE MANUFACTURE OF A-CETOCARBOXYLIC ACIDS AND PROCESSES THEREFORE OBTAINED

Country Status (12)

Country Link
JP (1) JPS6055497B2 (en)
AT (1) AT367014B (en)
BE (1) BE855257A (en)
CH (1) CH627430A5 (en)
DD (1) DD131013A5 (en)
DE (1) DE2708185C3 (en)
FR (1) FR2381735A1 (en)
GB (1) GB1533818A (en)
IL (1) IL52239A (en)
IT (1) IT1143581B (en)
NL (1) NL7706161A (en)
SU (1) SU793376A3 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0012548A1 (en) * 1978-12-05 1980-06-25 Stauffer Chemical Company Process for the preparation of substituted glyoxylic acids and derivatives thereof and acids and derivatives so produced

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3003541A1 (en) * 1980-01-31 1981-08-06 Bayer Ag, 5090 Leverkusen METHOD FOR PRODUCING 4-AMINO-6-TERT.-BUTYL-3-METHYLTHIO-1,2,4-TRIAZINE-5 (4H) -ON
DE3009043A1 (en) * 1980-03-08 1981-09-24 Bayer Ag, 5090 Leverkusen METHOD FOR PRODUCING 4-AMINO-6-TERT.-BUTYL-3-METHYLTHIO-1,2,4-TRIAZINE-5 (4H) -ON
DE3134230A1 (en) * 1981-08-29 1983-03-10 Bayer Ag, 5090 Leverkusen METHOD FOR PRODUCING 4-METHYL-5-OXO-3-THIOXO-TETRAHYDRO-1,2,4- (2H, 4H) -TRIAZINES
EP0141876B1 (en) * 1983-11-15 1987-03-11 Ethyl Corporation Preparation of cyclic-keto-acids

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0012548A1 (en) * 1978-12-05 1980-06-25 Stauffer Chemical Company Process for the preparation of substituted glyoxylic acids and derivatives thereof and acids and derivatives so produced

Also Published As

Publication number Publication date
CH627430A5 (en) 1982-01-15
DE2708185C3 (en) 1981-06-04
JPS6055497B2 (en) 1985-12-05
DE2708185A1 (en) 1978-08-31
IL52239A (en) 1980-11-30
DD131013A5 (en) 1978-05-24
GB1533818A (en) 1978-11-29
NL7706161A (en) 1978-08-29
SU793376A3 (en) 1980-12-30
DE2708185B2 (en) 1978-11-30
IL52239A0 (en) 1977-08-31
JPS53105423A (en) 1978-09-13
AT367014B (en) 1982-05-25
BE855257A (en) 1977-11-30
IT1143581B (en) 1986-10-22
ATA392777A (en) 1981-10-15
FR2381735B1 (en) 1980-01-18

Similar Documents

Publication Publication Date Title
FR2383688A1 (en) AZEOTROPIC DISTILLATION PROCESS
IL62687A0 (en) Preparation of acyl cyanides
FR2432007A1 (en) PROCESS FOR THE PREPARATION OF METHACROLEIN
FR2381735A1 (en) PROCESS FOR THE MANUFACTURE OF A-CETOCARBOXYLIC ACIDS AND PROCESSES THEREFORE OBTAINED
US3849453A (en) Quinone derivatives
SAUERS et al. A new synthesis of β-cyanoesters
US3763229A (en) Indan-1-carboxylic acid derivatives
DE2531456A1 (en) ANTI-INFLAMMATORY AND ANALGETICALLY EFFECTIVE STYLE DERIVATIVES
SE8501744L (en) N-METHYL-D-GLUCAMINE SALT OF D-2- (5-BROMO-6-METOXY-2-NAFTYL) -PROPIONIC ACID
FR2366244A1 (en) PROCESS FOR THE DIRECTED CHLORINATION OF ALCOYLBENZENES
EP0268820B1 (en) Process for producing 2-acylfuran derivatives
FR2364894A1 (en) PROCESS FOR THE MANUFACTURE OF BENZOYL CYANIDE
FR2363544A1 (en) PROCESS FOR OBTAINING ALKYL ESTERS OF SUBSTITUTED CYANOACETIC ACID
FR2381747A1 (en) PROCESS FOR THE MANUFACTURE OF ACYL CYANIDES AND CYANIDES THUS OBTAINED
FR2387953A1 (en) PROCESS FOR PREPARING 2-PYRROLIDONS SUBSTITUTES IN THE N POSITION
Horning et al. Polymethoxybromobenzenes1
Filler et al. Chemistry of Unsaturated Lactones I. Reaction of Oxazolones with Phenylmagnesium Bromide
Maynard et al. Divergent response of a hindered cyclopropene to strong oxidizing agents
DE60127455T2 (en) PROCESS FOR PREPARING BETA-KETONITRILE COMPOUNDS
FR2398037A1 (en) METHOD FOR SEPARATING METHACRYLIC ACID FROM AN ESTERIFICATION MIXTURE
DK0573361T3 (en) Process for the preparation of esters of 2,2-dimethyl-3 - ((Z) -1-propenyl) -cyclopropanecarboxylic acid and intermediates thereof
FR2387944A1 (en) PROCESS FOR THE MANUFACTURE OF BENZOYL CYANIDE
GB1057528A (en) Process for the manufacture of cyanoacetic acid esters
FR2445314A1 (en) PROCESS FOR THE PREPARATION OF 2- (3-PHENOXY-PHENYL) -PROPIONIC ACID
FR2404617A1 (en) PROCESS FOR PREPARATION OF BENZOYL HALOGENIDES AND HALOGENOSULFONYLBENZOYL HALOGENIDES

Legal Events

Date Code Title Description
ST Notification of lapse