Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal
Patent
1975-09-24
1977-09-20
Helfin, Bernard
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
C-metal
260598, C07C 5126, C07C 4500
Patent
active
040497062
ABSTRACT:
Chrysanthemyl alcohol is selectively oxidized to the corresponding aldehyde by contact with oxygen-containing gas in the presence of supported noble metal catalyst composed of platinum on carbon. The obtained aldehyde may be further converted to chrysanthemic acid by oxidation with a solid inorganic oxidizing agent such as silver oxide in excess of stoichiometric quantity, or by reaction with a catalytic amount of oxidation promoting catalyst such as silver oxide in the presence of cupric oxide and molecular oxygen.
REFERENCES:
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patent: 3840566 (1974-10-01), Lalancette
patent: 3926860 (1975-12-01), Chappell
Dauben et al., Jour. Org. Chem., vol. 34 (1969), 2301-2306.
Crombie et al., Jour. Chem. Soc. (1963) 4983.
Mills et al., Jour. Chem. Soc., (Perkin I) (1973) 133-137.
Heyns et al., Newer Methods of Preparative Organic Chemistry, vol. 2 (1963) 304-311, 320-323, 328-329, 332-335.
Air Products and Chemicals Inc.
Dannells Richard A.
Helfin Bernard
Mayerman Barry
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