GB1175240A - Process and Device for the Manufacture of Acetoacetic Acid Esters. - Google Patents

Process and Device for the Manufacture of Acetoacetic Acid Esters.

Info

Publication number
GB1175240A
GB1175240A GB58147/67A GB5814767A GB1175240A GB 1175240 A GB1175240 A GB 1175240A GB 58147/67 A GB58147/67 A GB 58147/67A GB 5814767 A GB5814767 A GB 5814767A GB 1175240 A GB1175240 A GB 1175240A
Authority
GB
United Kingdom
Prior art keywords
acid esters
acetoacetic acid
dec
basic
tertiary amines
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
GB58147/67A
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.)
Hoechst AG
Original Assignee
Hoechst AG
Farbwerke Hoechst 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 Hoechst AG, Farbwerke Hoechst AG filed Critical Hoechst AG
Publication of GB1175240A publication Critical patent/GB1175240A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/24—Stationary reactors without moving elements inside
    • B01J19/2415—Tubular reactors
    • B01J19/242—Tubular reactors in series
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C67/00—Preparation of carboxylic acid esters
    • C07C67/46—Preparation of carboxylic acid esters from ketenes or polyketenes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/00049—Controlling or regulating processes
    • B01J2219/00051—Controlling the temperature
    • B01J2219/00054—Controlling or regulating the heat exchange system
    • B01J2219/00056—Controlling or regulating the heat exchange system involving measured parameters
    • B01J2219/00065—Pressure measurement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/00049—Controlling or regulating processes
    • B01J2219/00051—Controlling the temperature
    • B01J2219/00074—Controlling the temperature by indirect heating or cooling employing heat exchange fluids
    • B01J2219/00087—Controlling the temperature by indirect heating or cooling employing heat exchange fluids with heat exchange elements outside the reactor
    • B01J2219/00101—Reflux columns
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/00049—Controlling or regulating processes
    • B01J2219/00051—Controlling the temperature
    • B01J2219/00132—Controlling the temperature using electric heating or cooling elements

Landscapes

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

Abstract

1,175,240. Acetoacetic acid esters. FARBWERKE HOECHST A.G. 21 Dec., 1967 [24 Dec., 1966], No. 58147/67. Heading C2C. Acetoacetic acid esters are prepared by reacting diketene with an aliphatic or cycloaliphatic alcohol that has a boiling point below 140‹ C., in the presence of, as catalyst, a basic compound and/or a betaine and under superatmospheric pressure. Examples of the basic catalyst include tertiary amines of the formula NR 3 in which each R stands for the same or different aliphatic, cycloaliphatic, araliphatic, aromatic or alkanol radicals; cyclic tertiary amines, quaternary ammonium salts, tertiary phosphines, di- and tri-basic sodium phosphates and other inorganic salts that have alkaline reactions in aqueous solution. A preferred apparatus for carrying out the process of the invention comprises a subdivided reactor in which the reaction mixture is boiled under reflux.
GB58147/67A 1966-12-24 1967-12-21 Process and Device for the Manufacture of Acetoacetic Acid Esters. Expired GB1175240A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF0051081 1966-12-24

Publications (1)

Publication Number Publication Date
GB1175240A true GB1175240A (en) 1969-12-23

Family

ID=7104322

Family Applications (1)

Application Number Title Priority Date Filing Date
GB58147/67A Expired GB1175240A (en) 1966-12-24 1967-12-21 Process and Device for the Manufacture of Acetoacetic Acid Esters.

Country Status (6)

Country Link
BE (1) BE708597A (en)
CH (1) CH484039A (en)
DE (1) DE1568655A1 (en)
FR (1) FR1549825A (en)
GB (1) GB1175240A (en)
NL (1) NL6716805A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4146724A (en) * 1975-12-24 1979-03-27 Basf Aktiengesellschaft Process for the manufacture of isopropyl 4-methylimidazole-5-carboxylate
EP0324418A2 (en) * 1988-01-14 1989-07-19 Takeda Chemical Industries, Ltd. Method for production of t-butyl- 3-oxobutyrates and their use

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4146724A (en) * 1975-12-24 1979-03-27 Basf Aktiengesellschaft Process for the manufacture of isopropyl 4-methylimidazole-5-carboxylate
EP0324418A2 (en) * 1988-01-14 1989-07-19 Takeda Chemical Industries, Ltd. Method for production of t-butyl- 3-oxobutyrates and their use
EP0324418A3 (en) * 1988-01-14 1991-09-11 Takeda Chemical Industries, Ltd. Method for production of t-butyl- 3-oxobutyrates and their use
US5183929A (en) * 1988-01-14 1993-02-02 Takeda Chemical Industries, Ltd. Method for production of T-butyl 3-oxobutyrates and their use

Also Published As

Publication number Publication date
FR1549825A (en) 1968-12-13
BE708597A (en) 1968-06-27
NL6716805A (en) 1968-06-25
DE1568655A1 (en) 1970-03-05
CH484039A (en) 1970-01-15

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees