PURPOSE: To produce ketones in high conversion ratio by reacting an olefinic compound with an oxygen-containing gas in the presence of a secondary alcohol using a cobalt complex as a catalyst.
CONSTITUTION: A compound expressed by formula II (R1 is alkyl, aryl, cycloalkyl, etc.; R2 is H, alkyl, etc.) (e.g., 4-phenyl-1-butene) is oxidized with an oxygen-containing gas in the presence of a secondary alcohol using a cobalt complex expressed by formula I (R3, R5, R6 and R8 are H, 1-10C alkyl, substituted aryl, lower alkoxymethyl, aryl lower alkyl, etc.; R4 and R7 are H, lower alkyl, halogen, etc., except that all the R3, R5, R6 and R8 are CF3 and R4 and R7 are H) [e.g., bis(2,6-dimethyl-3,5-heptanedionato)cobalt(II)] to afford ketones expressed by formulas III and/IV (e.g., 4-phenyl-2-butanone).
| JP2007203269 | ASYMMETRIC CATALYST |
| WO/1999/020392 | METHOD FOR PRODUCING SUPPORTED TRANSITION METAL CATALYSTS |
ISAYAMA SHIGERU
KATOU KOUJI
INOKI SATORU
YAMADA TORU
TAKAI TOSHIHIRO
