名称:
Complexes of lawsone with uranium, molybdenum, ruthenium and osmium, and their use as organic oxidants
摘要:
The new complexes trans-[UO2(NQ)2], cis-[MoO2(NQ)2] and [M(III)Cl2(EPh3)2 NQ] (M = Ru, E = As; M = Os, E = P; HNQ = lawsone, 2-hydroxyl-1,4-naphthoquinone) have been prepared. They were characterized by spectroscopic techniques and investigated by cyclic voltammetry. The complex [RuCl2(AsPh3)2NQ] was found to be a more efficient catalyst than that of the osmium complex for the oxidation of primary alcohols to aldehydes and of secondary alcohols to ketones in the presence of N-methylmorpholine-N-oxide as co-oxidant.