ES452594A1 - Process for the preparation of alpha-substituted ketones - Google Patents

Process for the preparation of alpha-substituted ketones

Info

Publication number
ES452594A1
ES452594A1 ES452594A ES452594A ES452594A1 ES 452594 A1 ES452594 A1 ES 452594A1 ES 452594 A ES452594 A ES 452594A ES 452594 A ES452594 A ES 452594A ES 452594 A1 ES452594 A1 ES 452594A1
Authority
ES
Spain
Prior art keywords
carbon atoms
hydrocarbon radical
general formula
formula
radicals
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
ES452594A
Other languages
Spanish (es)
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.)
Rhone Poulenc Industries SA
Original Assignee
Rhone Poulenc Industries SA
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 Rhone Poulenc Industries SA filed Critical Rhone Poulenc Industries SA
Publication of ES452594A1 publication Critical patent/ES452594A1/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C403/00—Derivatives of cyclohexane or of a cyclohexene or of cyclohexadiene, having a side-chain containing an acyclic unsaturated part of at least four carbon atoms, this part being directly attached to the cyclohexane or cyclohexene or cyclohexadiene rings, e.g. vitamin A, beta-carotene, beta-ionone
    • C07C403/02—Derivatives of cyclohexane or of a cyclohexene or of cyclohexadiene, having a side-chain containing an acyclic unsaturated part of at least four carbon atoms, this part being directly attached to the cyclohexane or cyclohexene or cyclohexadiene rings, e.g. vitamin A, beta-carotene, beta-ionone having side-chains containing only carbon and hydrogen atoms
    • 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
    • C07C45/51—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by pyrolysis, rearrangement or decomposition
    • C07C45/511—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by pyrolysis, rearrangement or decomposition involving transformation of singly bound oxygen functional groups to >C = O groups
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2601/00—Systems containing only non-condensed rings
    • C07C2601/12—Systems containing only non-condensed rings with a six-membered ring
    • C07C2601/14—The ring being saturated

Landscapes

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

Abstract

Procedure for preparing ketones, of the type comprising at least one secondary or tertiary aliphatic carbon atom in at least one of the α positions of the carbonyl group, of general formula: **(See formula)** wherein: Ro is an aliphatic or cycloaliphatic hydrocarbon radical, saturated or not, optionally substituted by one or more inert functional groups, comprising from 1 to 30 carbon atoms; R1 is a hydrocarbon radical comprising from 1 to 30 carbon atoms; R2 and R3 represent hydrogen; hydrocarbon radicals having 1 to 30 carbon atoms or one of the radicals R2 and R3 form with R1 a divalent hydrocarbon radical having 3 to 13 carbon atoms, or R2 and R3 together form a divalent hydrocarbon radical having 4 to 14 carbon atoms, characterized in that an aliphatic halide of the general formula is reacted: Ro - X (II) in which: Ro has the meaning already given; X represents a chlorine, bromine or iodine atom, with an enoxysilane of general formula: **(See formula)** wherein: R1, R2, R3 have the meaning given by formula I; n is an integer from 1 to 3; R represents a hydrocarbon radical having 1 to 20 carbon atoms, or, when n equals 1 or 2, at most one of the radicals R symbolizes a radical of general formula: **(See formula)** where: R1, R2, R3 and n have already given meaning; R4 is a hydrocarbon radical having 1 to 20 carbon atoms, identical or different from R; A represents a Valencian ligand, an oxygen atom, a divalent hydrocarbon radical having 1 to 10 carbon atoms, in the presence of a catalyst consisting of a metal or a metal derivative of groups 1b, 2b, 3b, 4a, 4b, 5a, 5b, 6b, 7b and 8 of the periodic classification of the elements. (Machine-translation by Google Translate, not legally binding)
ES452594A 1975-10-21 1976-10-21 Process for the preparation of alpha-substituted ketones Expired ES452594A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7532978A FR2328684A1 (en) 1975-10-21 1975-10-21 PROCESS FOR PREPARING A-SUBSTITUTED KETONES

Publications (1)

Publication Number Publication Date
ES452594A1 true ES452594A1 (en) 1977-11-16

Family

ID=9161757

Family Applications (1)

Application Number Title Priority Date Filing Date
ES452594A Expired ES452594A1 (en) 1975-10-21 1976-10-21 Process for the preparation of alpha-substituted ketones

Country Status (12)

Country Link
JP (1) JPS5251310A (en)
AT (1) AT347911B (en)
BE (1) BE847479A (en)
CA (1) CA1087622A (en)
CH (1) CH616138A5 (en)
DE (1) DE2647704A1 (en)
ES (1) ES452594A1 (en)
FR (1) FR2328684A1 (en)
GB (1) GB1525188A (en)
IT (1) IT1083969B (en)
NL (1) NL7611600A (en)
SE (1) SE7611660L (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104844401B (en) * 2015-06-02 2016-08-24 重庆医科大学 The method of catalyst-free synthesis Isosorbide-5-Nitrae-cyclohexadione compounds

Also Published As

Publication number Publication date
CH616138A5 (en) 1980-03-14
NL7611600A (en) 1977-04-25
AT347911B (en) 1979-01-25
JPS5251310A (en) 1977-04-25
IT1083969B (en) 1985-05-25
CA1087622A (en) 1980-10-14
SE7611660L (en) 1977-04-22
FR2328684A1 (en) 1977-05-20
FR2328684B1 (en) 1979-05-04
DE2647704A1 (en) 1977-04-28
GB1525188A (en) 1978-09-20
BE847479A (en) 1977-04-20
ATA785576A (en) 1978-06-15

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