Patent ID: 8383863

Claim:
A method for producing an aldehyde or a ketone, the method comprising at least an oxidation step of oxidizing a primary alcohol or a secondary alcohol in the presence of a polymeric carbodiimide having a weight-average molecular weight of 300 to 5000, being soluble in an organic solvent and being represented by the following formula (1): wherein R1 and R2, which may be identical with or different from each other, each represents a substituted or unsubstituted, linear or branched alkyl group having 1 to 12 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 12 carbon atoms, or a substituted or unsubstituted aryl group having 6 to 12 carbon atoms; R3 represents a substituted or unsubstituted, linear or branched alkylene group having 1 to 12 carbon atoms, a substituted or unsubstituted cycloalkylene group having 3 to 12 carbon atoms, a substituted or unsubstituted arylene group having 6 to 12 carbon atoms, a substituted or unsubstituted alkylenecycloalkylene group having 4 to 18 carbon atoms, or a substituted or unsubstituted alkylenearylene group having 7 to 18 carbon atoms; and n represents a number that satisfies the molecular weight described above, and a sulfoxide compound, together with an acid and a base or together with a salt of the acid and the base.