USE OF AN ACID OF MEAN STRENGTH AS IZOMERISATION CATALYST OF AN EPOXIDE WITH A CARBONYL FUNCTION IN THE EPOXIDE ALPHA  

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	Publication number: WO9858898 (A1) Publication date: 1998-12-30 Inventor(s): SPINDLER JEAN-FRANCIS [FR]; ALAS MICHEL [FR]; DESMURS JEAN-ROGER [FR] Applicant(s): RHONE POULENC CHIMIE [FR]; SPINDLER JEAN FRANCIS [FR]; ALAS MICHEL [FR]; DESMURS JEAN ROGER [FR] Classification:   - international: B01J27/24; B01J31/02; C07B61/00; C07C67/31; C07C67/333; C07C69/716; C07C69/732; B01J27/24; B01J31/02; C07B61/00; C07C67/00; C07C69/00; (IPC1-7): C07C67/31; C07C67/333; C07C69/732 - European: C07C67/31; C07C67/333 Application number: WO1998FR01331 19980624  Priority number(s): FR19970007873 19970624     View INPADOC patent family   View list of citing documents   View document in the European Register     Also published as:   FR2764885  (A1)     EP0993434  (A1)     JP2002504920  (T)     AU8343198  (A)     CN1261343  (A)     Cited documents:   XP002055559 (A)     XP002055560 (A)     JP57093933 (A)   Report a data error here    Abstract of WO 9858898  (A1) The invention concerns a method for the izomerisation of an epoxide with a carbonyl function in the epoxide alpha characterised in that it consists in subjecting said epoxide dissolved in a slightly polar medium to the action of an acid whereof the pKa (measured in an aqueous medium) ranges between zero and 3 and the solubility in benzene is at least low (symbol d or delta in the "handbook of chemistry and physics) at a temperature between 50 DEG C and 150 DEG C. The invention is applicable to organic synthesis. Data supplied from the esp@cenet database — Worldwide