The oxidation of alcohols into aldehydes and ketones can be efficiently performed using catalytic amounts of CuCl . Phen and molecular oxygen or air. This novel, ecologically friendly procedure releases water as the only byproduct.
Marko, I., Giles, PR., Tsukazaki, M., Chelle-Regnaut, I., Gautier, A., Brown, S., & Urch, C. J. (1999). Efficient, ecologically benign, aerobic oxidation of alcohols. The Journal of Organic Chemistry, 64(7), 2433-2439. https://doi.org/10.1021/jo982239s (Original work published 1999)