ES292362A1 - Method for preparing ketones containing a cyclohexylic nucleus - Google Patents

Method for preparing ketones containing a cyclohexylic nucleus

Info

Publication number
ES292362A1
ES292362A1 ES0292362A ES292362A ES292362A1 ES 292362 A1 ES292362 A1 ES 292362A1 ES 0292362 A ES0292362 A ES 0292362A ES 292362 A ES292362 A ES 292362A ES 292362 A1 ES292362 A1 ES 292362A1
Authority
ES
Spain
Prior art keywords
acids
conversion
benzoic acid
reaction
hand
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
ES0292362A
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.)
SNIA Viscosa SpA
Original Assignee
SNIA Viscosa SpA
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 SNIA Viscosa SpA filed Critical SNIA Viscosa SpA
Publication of ES292362A1 publication Critical patent/ES292362A1/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
    • C07C45/45—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by condensation
    • C07C45/48—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by condensation involving decarboxylation
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C49/00—Ketones; Ketenes; Dimeric ketenes; Ketonic chelates
    • C07C49/29—Saturated compounds containing keto groups bound to rings
    • C07C49/313—Saturated compounds containing keto groups bound to rings polycyclic
    • C07C49/317—Saturated compounds containing keto groups bound to rings polycyclic both carbon atoms bound to the keto group belonging to rings
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C49/00—Ketones; Ketenes; Dimeric ketenes; Ketonic chelates
    • C07C49/76—Ketones containing a keto group bound to a six-membered aromatic ring
    • C07C49/782—Ketones containing a keto group bound to a six-membered aromatic ring polycyclic
    • C07C49/792—Ketones containing a keto group bound to a six-membered aromatic ring polycyclic containing rings other than six-membered aromatic rings

Abstract

In a method of preparing dicyclohexyl ketone and cyclohexylphenyl ketone by the conversion of hexahydro benzoic acid or of an equimolecular mixture of hexahydro benzoic acid with benzoic acid at temperatures between 280 and 450 C. in the presence of metal oxides, in particular manganese oxide, dissolved in the corresponding acids, the reaction of the acids with metal oxide on the one hand and the conversion of the acids into the ketones on the other hand are executed in two successive stages to increase the activity of the catalyst and to increase the conversion ratio. The reaction of the acids with the metal oxide and their conversion whilst being done in two successive stages may be carried out in the same or separate reaction vessels. Examples are given of preparations described with reference to suitable apparatus.In a method of preparing dicyclohexyl ketone and cyclohexylphenyl ketone by the conversion of hexahydro benzoic acid or of an equimolecular mixture of hexahydro benzoic acid with benzoic acid at temperatures between 280 DEG and 450 DEG C. in the presence of metal oxides, in particular manganese oxide, dissolved in the corresponding acids, the reaction of the acids with metal oxide on the one hand and the conversion of the acids into the ketones on the other hand are executed in two successive stages to increase the activity of the catalyst and to increase the conversion ratio. The reaction of the acids with the metal oxide and their conversion whilst being done in two successive stages may be carried out in the same or separate reaction vessels. Examples are given of preparations described with reference to suitable apparatus.
ES0292362A 1962-10-11 1963-10-10 Method for preparing ketones containing a cyclohexylic nucleus Expired ES292362A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT2002762 1962-10-11

Publications (1)

Publication Number Publication Date
ES292362A1 true ES292362A1 (en) 1964-01-01

Family

ID=11163221

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0292362A Expired ES292362A1 (en) 1962-10-11 1963-10-10 Method for preparing ketones containing a cyclohexylic nucleus

Country Status (4)

Country Link
AT (1) AT243245B (en)
DK (1) DK108913C (en)
ES (1) ES292362A1 (en)
GB (1) GB1063268A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040026964A (en) 2002-09-27 2004-04-01 금호석유화학 주식회사 Synthesis of cyclohexyl phenyl ketone from 1,3-butadiene and acrylic acid
AU2018285599B2 (en) 2017-06-16 2021-09-30 Rhodia Operations Process for the catalytic decarboxylative cross-ketonization of aryl and aliphatic carboxylic acid
EP3415493B1 (en) * 2017-06-16 2020-01-01 Rhodia Operations Process for the catalytic decarboxylative cross-ketonisation of aryl- and aliphatic carboxylic acids

Also Published As

Publication number Publication date
AT243245B (en) 1965-10-25
GB1063268A (en) 1967-03-30
GB1063268A8 (en) 1967-04-25
DK108913C (en) 1968-02-26

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