HUT36764A - Process for the production of 9-fluorenone - Google Patents

Process for the production of 9-fluorenone

Info

Publication number
HUT36764A
HUT36764A HU423483A HU423483A HUT36764A HU T36764 A HUT36764 A HU T36764A HU 423483 A HU423483 A HU 423483A HU 423483 A HU423483 A HU 423483A HU T36764 A HUT36764 A HU T36764A
Authority
HU
Hungary
Prior art keywords
ammonium
fluorenone
oxidn
triethyl
ammonium chloride
Prior art date
Application number
HU423483A
Other languages
Hungarian (hu)
Other versions
HU198668B (en
Inventor
Zoltan Szeverenyi
Laszlo Simandi
Rezsoe Csikos
Peter L Farjkas
Ferenc Marta
Felix Hajdu
Janos Remenyi
Tamas Weber
Ferencne Simon
Katalin Vasarhelyi
Original Assignee
Mta Koezponti Kemiai Kutato In
Magyar Asvanyolaj Es Foeldgaz
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 Mta Koezponti Kemiai Kutato In, Magyar Asvanyolaj Es Foeldgaz filed Critical Mta Koezponti Kemiai Kutato In
Priority to HU423483A priority Critical patent/HU198668B/en
Publication of HUT36764A publication Critical patent/HUT36764A/en
Publication of HU198668B publication Critical patent/HU198668B/en

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Prodn. of 9-fluorenone comprises oxidn. of fluorene in petroleum ether or DMF with O2 or air at 20-30 deg.C with intensive stirring. Oxidn. is carried out in the presence of KOH or a quat. ammonium cpd. (I). The reaction product is evaporated under vacuum, dissolved in water and the resulting precipitate is filtered off and recrystallised in methanol. The yield is 96%. (I) may be tetraethyl-ammonium chloride, triethyl-dodecyl -ammonium bromide, benzyl-triethyl -ammonium chloride or tetraoctyl -ammonium bromide.
HU423483A 1983-12-13 1983-12-13 Process for production of 9-fluorenon HU198668B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
HU423483A HU198668B (en) 1983-12-13 1983-12-13 Process for production of 9-fluorenon

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
HU423483A HU198668B (en) 1983-12-13 1983-12-13 Process for production of 9-fluorenon

Publications (2)

Publication Number Publication Date
HUT36764A true HUT36764A (en) 1985-10-28
HU198668B HU198668B (en) 1989-11-28

Family

ID=10967399

Family Applications (1)

Application Number Title Priority Date Filing Date
HU423483A HU198668B (en) 1983-12-13 1983-12-13 Process for production of 9-fluorenon

Country Status (1)

Country Link
HU (1) HU198668B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5545760A (en) * 1995-02-07 1996-08-13 The Dow Chemical Company Process for making fluorenones
CN102020543B (en) * 2009-09-15 2013-12-11 鞍钢股份有限公司 Method for producing 9-fluorenone

Also Published As

Publication number Publication date
HU198668B (en) 1989-11-28

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Legal Events

Date Code Title Description
HU90 Patent valid on 900628
HMM4 Cancellation of final prot. due to non-payment of fee