GB851658A - Production of methylheptenone - Google Patents

Production of methylheptenone

Info

Publication number
GB851658A
GB851658A GB209/59A GB20959A GB851658A GB 851658 A GB851658 A GB 851658A GB 209/59 A GB209/59 A GB 209/59A GB 20959 A GB20959 A GB 20959A GB 851658 A GB851658 A GB 851658A
Authority
GB
United Kingdom
Prior art keywords
methylbutene
chloro
acetone
methylheptenone
prepared
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
GB209/59A
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.)
Primerica Inc
Original Assignee
Metal and Thermit Corp
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 Metal and Thermit Corp filed Critical Metal and Thermit Corp
Publication of GB851658A publication Critical patent/GB851658A/en
Expired 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

Abstract

2-methylhept-2-ene-6-one is prepared by forming a mixture of acetone, 1-chloro-3-methylbutene-2 and NaOH or KOH, in the molar proportions 1-5:1:0,25-3, keeping the reactants well mixed at 0-80 DEG C for 1/2 -8 hours, and isolating the methylheptenone produced. Instead of acetone, base-catalysed condensation products of acetone, such as diacetone alcohol, may be used. 1-chloro-3-methylbutene-2 (and 3-chloro-3-methylbutene-1) are prepared by the addition of concentrated HCl to isoprene.
GB209/59A 1958-01-03 1959-01-02 Production of methylheptenone Expired GB851658A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US851658XA 1958-01-03 1958-01-03

Publications (1)

Publication Number Publication Date
GB851658A true GB851658A (en) 1960-10-19

Family

ID=22189869

Family Applications (1)

Application Number Title Priority Date Filing Date
GB209/59A Expired GB851658A (en) 1958-01-03 1959-01-02 Production of methylheptenone

Country Status (1)

Country Link
GB (1) GB851658A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50160207A (en) * 1974-06-14 1975-12-25
JPS50160206A (en) * 1974-06-14 1975-12-25

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50160207A (en) * 1974-06-14 1975-12-25
JPS50160206A (en) * 1974-06-14 1975-12-25
JPS5729012B2 (en) * 1974-06-14 1982-06-19

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