Global Patent Index - EP 0912481 A1

EP 0912481 A1 19990506 - PROCESS FOR MAKING FLUORENONES

Title (en)

PROCESS FOR MAKING FLUORENONES

Title (de)

VERFAHREN ZUR HERSTELLUNG VON FLUORENONEN

Title (fr)

PROCEDE DE PRODUCTION DE FLUORENONES

Publication

EP 0912481 A1 19990506 (EN)

Application

EP 96920484 A 19960524

Priority

US 9607694 W 19960524

Abstract (en)

[origin: WO9745393A1] A process for the oxidation of a fluorene compound to a corresponding fluorenone compound comprises treating the fluorene compound with an oxidizing gas in the presence of a solid alkali metal or alkaline earth metal oxide or hydroxide or a concentrated aqueous solution thereof in a reaction mixture containing a non-aqueous heterocyclic nitrogenous solvent, wherein the reaction mixture is free of a phase transfer agent, for a time sufficient and at a temperature sufficient to convert the fluorene compound to the fluorenone compound.

IPC 1-7

C07C 45/36

IPC 8 full level

C07C 49/675 (2006.01)

CPC (source: EP)

C07C 49/675 (2013.01)

Designated contracting state (EPC)

AT BE DE FR GB IT NL

DOCDB simple family (publication)

WO 9745393 A1 19971204; CA 2253746 A1 19971204; EP 0912481 A1 19990506; EP 0912481 A4 19990519

DOCDB simple family (application)

US 9607694 W 19960524; CA 2253746 A 19960524; EP 96920484 A 19960524