Patent ID: 6355841
Filing Date: 2002-03-12
Classification: C07C,C07F,Y02P

Abstract:
A process for producing a sulfone derivative of formula (1): whereinAr represents an aryl group which may be substituted, R represents a lower alkyl group and the wavy line depicted by â€ƒindicates a single bond and stereochemistry relating to a double bond bound therewith is E or Z or a mixture thereof, which comprises reacting an aldehyde derivative of formula (2): wherein Ar, R and the wavy line respectively have the same meanings as defined above, with a phosphonium salt of formula (3): whereinAr, R and the wavy line respectively have the same meanings as defined above, X represents a halogen atom or HSO4, and Y means an lower alkyl group or an optionally substituted phenyl group, in the presence of a base or an epoxide.