FR2337122A1 - Acid chlorides prepn. from organic acids and phosgene - with a hexa-alkyl phosphorotriamide catalyst at elevated temp. - Google Patents

Acid chlorides prepn. from organic acids and phosgene - with a hexa-alkyl phosphorotriamide catalyst at elevated temp.

Info

Publication number
FR2337122A1
FR2337122A1 FR7540210A FR7540210A FR2337122A1 FR 2337122 A1 FR2337122 A1 FR 2337122A1 FR 7540210 A FR7540210 A FR 7540210A FR 7540210 A FR7540210 A FR 7540210A FR 2337122 A1 FR2337122 A1 FR 2337122A1
Authority
FR
France
Prior art keywords
catalyst
acid chlorides
alkyl
organic acids
phosphorotriamide
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
FR7540210A
Other languages
French (fr)
Other versions
FR2337122B1 (en
Inventor
Julien Cyrille Mauric Deweerdt
Bernard Robert-Colomby
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.)
Societe Nationale des Poudres et Explosifs
Original Assignee
Societe Nationale des Poudres et Explosifs
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 Societe Nationale des Poudres et Explosifs filed Critical Societe Nationale des Poudres et Explosifs
Priority to FR7540210A priority Critical patent/FR2337122A1/en
Priority to DE19762657734 priority patent/DE2657734A1/en
Priority to NL7614324A priority patent/NL7614324A/en
Priority to JP15764176A priority patent/JPS52102206A/en
Priority to LU76494A priority patent/LU76494A1/xx
Priority to DK588076A priority patent/DK588076A/en
Priority to BE173795A priority patent/BE850041A/en
Publication of FR2337122A1 publication Critical patent/FR2337122A1/en
Application granted granted Critical
Publication of FR2337122B1 publication Critical patent/FR2337122B1/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
    • C07C51/58—Preparation of carboxylic acid halides
    • C07C51/60—Preparation of carboxylic acid halides by conversion of carboxylic acids or their anhydrides or esters, lactones, salts into halides with the same carboxylic acid part
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/584—Recycling of catalysts

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)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

Prodn. of acid chlorides by heating COCl2 with organic acids in the presence, as catalyst, of a phosphoric acid triamide of formula O=P- N(R)2- -3 (where each R is 1-4 C alkyl). The pref. catalyst is hexamethylphosphotriamide. The reaction is pref. performed at 100-150 degrees C using 1-5 mol % of catalyst (based on the organic acid) e.g. 2,2-di-Me-propionic or 3,5,5-tri-Me-hexanoic. The prod. may be sepd. by distn. from the catalyst which is pref. recycled to a new reaction. Acid chlorides are useful intermediates in organic syntheses. The difference in b.pt. between the catalysts and acid chlorides allows a simple sepn. and the catalyst remains active after several successive reactions.
FR7540210A 1975-12-31 1975-12-31 Acid chlorides prepn. from organic acids and phosgene - with a hexa-alkyl phosphorotriamide catalyst at elevated temp. Granted FR2337122A1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
FR7540210A FR2337122A1 (en) 1975-12-31 1975-12-31 Acid chlorides prepn. from organic acids and phosgene - with a hexa-alkyl phosphorotriamide catalyst at elevated temp.
DE19762657734 DE2657734A1 (en) 1975-12-31 1976-12-20 PROCESS FOR THE PRODUCTION OF ACID CHLORIDES BY CATALYTIC HOT PHOSGENATION OF CARBONIC ACIDS
NL7614324A NL7614324A (en) 1975-12-31 1976-12-23 PROCESS FOR THE PREPARATION OF CARBONIC ACID CHLORIDES.
JP15764176A JPS52102206A (en) 1975-12-31 1976-12-28 Process for preparing chloride of carboxylic acid
LU76494A LU76494A1 (en) 1975-12-31 1976-12-29
DK588076A DK588076A (en) 1975-12-31 1976-12-30 PROCEDURE FOR THE PREPARATION OF ACID CHLORIDE
BE173795A BE850041A (en) 1975-12-31 1976-12-31 PHOSPHORUS CATALYZERS FOR THE PHOSGENATION OF ACIDS TO ACID CHLORIDES

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7540210A FR2337122A1 (en) 1975-12-31 1975-12-31 Acid chlorides prepn. from organic acids and phosgene - with a hexa-alkyl phosphorotriamide catalyst at elevated temp.

Publications (2)

Publication Number Publication Date
FR2337122A1 true FR2337122A1 (en) 1977-07-29
FR2337122B1 FR2337122B1 (en) 1978-07-28

Family

ID=9164353

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7540210A Granted FR2337122A1 (en) 1975-12-31 1975-12-31 Acid chlorides prepn. from organic acids and phosgene - with a hexa-alkyl phosphorotriamide catalyst at elevated temp.

Country Status (7)

Country Link
JP (1) JPS52102206A (en)
BE (1) BE850041A (en)
DE (1) DE2657734A1 (en)
DK (1) DK588076A (en)
FR (1) FR2337122A1 (en)
LU (1) LU76494A1 (en)
NL (1) NL7614324A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2926789A1 (en) * 1979-07-03 1981-01-15 Bayer Ag METHOD FOR PRODUCING AROMATIC DICARBONIC ACID DICHLORIDES III
CN114478300B (en) * 2021-07-16 2023-05-23 丰益表面活性材料（连云港）有限公司 Novel acyl chloride catalyst and preparation method and application thereof

Also Published As

Publication number Publication date
FR2337122B1 (en) 1978-07-28
NL7614324A (en) 1977-07-04
DE2657734A1 (en) 1977-07-07
LU76494A1 (en) 1978-07-10
DK588076A (en) 1977-07-01
JPS52102206A (en) 1977-08-27
BE850041A (en) 1977-06-30

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