2393.     NATTA, G., AND PINO, P.  [Some New Applications of the Oxo Synthesis.]  Chimica e industria, vol. 31, 1949, pp. 109-111; British Abs., 1949, B, II, p. 943.

        Oxo synthesis is a method of wide applicability for producing aldehydes from CO, H2, and compounds containing an olefinic double bond in presence of metallic Co or CoI2.  cyclic mono-olefins can be used as starting materials, and terpenes interact even more readily than do olefins.  Esters may also be obtained.  With metallic Co as catalyst, a long induction period occurs varying with the method of preparation and surface changes.