A simple, economically convenient, and eco??compatible procedure for the oxidation of 2,2??dichloroalkanals to the corresponding alkanoic acids has been set up, employing HNO 3 in CH 2 Cl 2 , in the presence of NaNO 2 as catalyst. ... A simple, economically convenient, and eco??compatible procedure for the oxidation of 2,2??dichloroalkanals to the corresponding alkanoic acids has been set up, employing HNO 3 in CH 2 Cl 2 , in the presence of NaNO 2 as catalyst.