BR0215533A - Process for the preparation of 3,5,5-trimethyl-cyclohex-2-ene-1,4-dione - Google Patents

Process for the preparation of 3,5,5-trimethyl-cyclohex-2-ene-1,4-dione

Info

Publication number
BR0215533A
BR0215533A BR0215533-8A BR0215533A BR0215533A BR 0215533 A BR0215533 A BR 0215533A BR 0215533 A BR0215533 A BR 0215533A BR 0215533 A BR0215533 A BR 0215533A
Authority
BR
Brazil
Prior art keywords
dione
ene
trimethyl
preparation
cyclohex
Prior art date
Application number
BR0215533-8A
Other languages
Portuguese (pt)
Inventor
Ralf Maassen
Volker Haefner
Steffen Krill
Juergen Bilz
Georg Markowz
Klaus Huthmacher
Original Assignee
Degussa
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 Degussa filed Critical Degussa
Publication of BR0215533A publication Critical patent/BR0215533A/en

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
    • C07C45/27—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation
    • C07C45/32—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation with molecular oxygen
    • C07C45/33—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation with molecular oxygen of CHx-moieties
    • C07C45/34—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation with molecular oxygen of CHx-moieties in unsaturated compounds
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C49/00—Ketones; Ketenes; Dimeric ketenes; Ketonic chelates
    • C07C49/587—Unsaturated compounds containing a keto groups being part of a ring
    • C07C49/603—Unsaturated compounds containing a keto groups being part of a ring of a six-membered ring
    • 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
    • C07C2601/16—Systems containing only non-condensed rings with a six-membered ring the ring being unsaturated

Abstract

"PROCESSO PARA A PREPARAçãO DE 3,5,5-TRIMETIL-CICLOEX-2-ENO-1,4-DIONA". A presente invenção refere-se a um processo melhorado para a preparação de 3,5,5-trimetilcicloex-2-eno-1,4-diona por oxidação de 3,5,5-trimetilcicloex-3-en-1-ona na presença de um agente oxidante e de um sistema catalisador contendo um catalisador complexo de metal de transição, uma base auxiliar, possivelmente água, e um co-aditivo cataliticamente ativo, caracterizado pelo fato de que, como solvente, são empregadas amidas de ácido carboxílico."PROCESS FOR PREPARING 3,5,5-TRIMETHYL-CYCLOEX-2-ENO-1,4-DIONA". The present invention relates to an improved process for the preparation of 3,5,5-trimethylcycloex-2-ene-1,4-dione by oxidizing 3,5,5-trimethylcycloex-3-en-1-one in The presence of an oxidizing agent and catalyst system containing a complex transition metal catalyst, an auxiliary base, possibly water, and a catalytically active co-additive, characterized in that carboxylic acid amides are employed as a solvent.

BR0215533-8A 2002-01-23 2002-01-23 Process for the preparation of 3,5,5-trimethyl-cyclohex-2-ene-1,4-dione BR0215533A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2002/000621 WO2003062184A1 (en) 2002-01-23 2002-01-23 Process for the preparation of 3,5,5-trimethyl-cyclohex-2-ene-1,4-dione

Publications (1)

Publication Number Publication Date
BR0215533A true BR0215533A (en) 2004-12-21

Family

ID=27589041

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0215533-8A BR0215533A (en) 2002-01-23 2002-01-23 Process for the preparation of 3,5,5-trimethyl-cyclohex-2-ene-1,4-dione

Country Status (8)

Country Link
EP (1) EP1467961A1 (en)
JP (1) JP2005526017A (en)
KR (1) KR20040086284A (en)
CN (1) CN1267396C (en)
BR (1) BR0215533A (en)
CA (1) CA2473941A1 (en)
MX (1) MXPA04006987A (en)
WO (1) WO2003062184A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105646196B (en) * 2014-12-03 2018-02-23 中国科学院大连化学物理研究所 A kind of method that the carboxylic acid of 4 methyl cyclohexane, 3 alkene 1 is prepared to methyl cyclohexane cyclohexene carboxaldehyde
CN109438199B (en) * 2018-09-20 2020-04-07 山东新和成维生素有限公司 Method for preparing 2,6, 6-trimethyl-2-cyclohexene-1, 4-diketone by continuous and efficient oxidation

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19619570A1 (en) * 1996-05-15 1997-11-20 Degussa Process for the preparation of ketoisophorone
DE19929362A1 (en) * 1999-06-25 2000-12-28 Basf Ag Process for the preparation of oxoisophorone using additives
DE10062260A1 (en) * 2000-12-14 2002-06-20 Degussa Preparation of 3,5,5-trimethylcyclohex-2-en-1,4-dione uses a catalyst containing a coadditive from acids, 1-4C aliphatic alcohol or phenol, compounds forming an enol and lithium sulfate

Also Published As

Publication number Publication date
CN1615291A (en) 2005-05-11
EP1467961A1 (en) 2004-10-20
CA2473941A1 (en) 2003-07-31
MXPA04006987A (en) 2004-11-10
WO2003062184A1 (en) 2003-07-31
KR20040086284A (en) 2004-10-08
CN1267396C (en) 2006-08-02
JP2005526017A (en) 2005-09-02

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Legal Events

Date Code Title Description
B11A Dismissal acc. art.33 of ipl - examination not requested within 36 months of filing
B11Y Definitive dismissal acc. article 33 of ipl - extension of time limit for request of examination expired