FR2444658A1 - Procede pour la preparation des 2-methylene-aldehydes - Google Patents

Procede pour la preparation des 2-methylene-aldehydes

Info

Publication number
FR2444658A1
FR2444658A1 FR7930766A FR7930766A FR2444658A1 FR 2444658 A1 FR2444658 A1 FR 2444658A1 FR 7930766 A FR7930766 A FR 7930766A FR 7930766 A FR7930766 A FR 7930766A FR 2444658 A1 FR2444658 A1 FR 2444658A1
Authority
FR
France
Prior art keywords
aldehydes
methylene
preparation
formaldehyde
general formula
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
FR7930766A
Other languages
English (en)
Other versions
FR2444658B1 (fr
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.)
Ruhrchemie AG
Original Assignee
Ruhrchemie AG
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 Ruhrchemie AG filed Critical Ruhrchemie AG
Publication of FR2444658A1 publication Critical patent/FR2444658A1/fr
Application granted granted Critical
Publication of FR2444658B1 publication Critical patent/FR2444658B1/fr
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
    • C07C45/61—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups
    • C07C45/67—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton
    • C07C45/68—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton by increase in the number of carbon atoms
    • C07C45/72—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton by increase in the number of carbon atoms by reaction of compounds containing >C = O groups with the same or other compounds containing >C = O groups
    • C07C45/75—Reactions with formaldehyde
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C47/00—Compounds having —CHO groups
    • C07C47/20—Unsaturated compounds having —CHO groups bound to acyclic carbon atoms
    • C07C47/21—Unsaturated compounds having —CHO groups bound to acyclic carbon atoms with only carbon-to-carbon double bonds as unsaturation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

Procédé pour la préparation des 2-méthylène-aldéhydes par réaction d'aldéhydes avec le formaldéhyde dans un rapport molaire de 1 : 1, à des températures de 60 à 120 degrés C. On fait réagir des aldéhydes répondant à la formule générale R1 -CH2 -CHO dans laquelle R1 représente l'hydrogène ou un reste aliphatique contenant jusqu'à 12 atomes de carbone, cycloaliphatique ou aromatique, avec le formaldéhyde, en présence de quantités catalytiques d'une énamine répondant à la formule générale :
FR7930766A 1978-12-22 1979-12-14 Procede pour la preparation des 2-methylene-aldehydes Granted FR2444658A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2855505A DE2855505C3 (de) 1978-12-22 1978-12-22 Verfahren zur Herstellung von 2-Methylen-aldehyden

Publications (2)

Publication Number Publication Date
FR2444658A1 true FR2444658A1 (fr) 1980-07-18
FR2444658B1 FR2444658B1 (fr) 1983-10-28

Family

ID=6058009

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7930766A Granted FR2444658A1 (fr) 1978-12-22 1979-12-14 Procede pour la preparation des 2-methylene-aldehydes

Country Status (13)

Country Link
US (1) US4275242A (fr)
JP (1) JPS5587735A (fr)
AT (1) AT370715B (fr)
CA (1) CA1105944A (fr)
CH (1) CH641434A5 (fr)
DD (1) DD147941A5 (fr)
DE (1) DE2855505C3 (fr)
FR (1) FR2444658A1 (fr)
GB (1) GB2038826B (fr)
HU (1) HU184199B (fr)
IT (1) IT1207016B (fr)
NL (1) NL181797C (fr)
RO (1) RO79172A (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3213681A1 (de) * 1982-04-14 1983-10-27 Basf Ag, 6700 Ludwigshafen Verfahren zur herstellung von (alpha)-alkylacroleinen
DE3716730A1 (de) * 1987-05-19 1988-12-01 Basf Ag 4-methyl-4-phenyl-1-pentanale, deren herstellung und verwendung als riechstoffe
EP3620447B1 (fr) 2012-03-29 2021-02-17 Translate Bio, Inc. Lipides cationiques ionisables

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2639295A (en) * 1948-07-16 1953-05-19 Eastman Kodak Co Manufacture of unsaturated aldehydes
FR1508854A (fr) * 1966-01-25 1968-01-05 Int Flavors & Fragrances Inc Procédé pour la préparation d'alpha-méthylène- et alpha-méthylaldéhydes et -alcools et de leurs dérivés, et produits ainsi obtenus

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2518416A (en) * 1948-04-28 1950-08-08 Rohm & Haas Preparation of acroleins

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2639295A (en) * 1948-07-16 1953-05-19 Eastman Kodak Co Manufacture of unsaturated aldehydes
FR1508854A (fr) * 1966-01-25 1968-01-05 Int Flavors & Fragrances Inc Procédé pour la préparation d'alpha-méthylène- et alpha-méthylaldéhydes et -alcools et de leurs dérivés, et produits ainsi obtenus

Also Published As

Publication number Publication date
DE2855505B2 (de) 1980-12-11
DD147941A5 (de) 1981-04-29
GB2038826A (en) 1980-07-30
DE2855505A1 (de) 1980-06-26
AT370715B (de) 1983-04-25
JPS5587735A (en) 1980-07-02
GB2038826B (en) 1983-03-23
DE2855505C3 (de) 1981-11-12
CH641434A5 (de) 1984-02-29
CA1105944A (fr) 1981-07-28
US4275242A (en) 1981-06-23
NL7908948A (nl) 1980-06-24
IT7951126A0 (it) 1979-12-18
IT1207016B (it) 1989-05-17
ATA785979A (de) 1982-09-15
NL181797C (nl) 1987-11-02
HU184199B (en) 1984-07-30
RO79172A (fr) 1982-08-17
JPS5727094B2 (fr) 1982-06-08
FR2444658B1 (fr) 1983-10-28

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Legal Events

Date Code Title Description
ST Notification of lapse