A selective and efficient method for the oxidation of sterically hindered sulfides to sulfoxides is described, which involves the use of hydrogen peroxide in methanol in the presence of catalytic amounts of a mixture of sulfuric acid and isoamyl, isopropyl or tert-butyl alcohol.
Diferrocenyl Molecular Wires. The Role of Heteroatom Linkers
作者:Yu Li、Mira Josowicz、Laren M. Tolbert
DOI:10.1021/ja101585z
日期:2010.8.4
"wires", in which two ferrocenes are linked by a conjugated chain, allowing the communication of redox information between the ferrocenes, are a versatile platform on which to investigate notions of molecular conductivity. In this paper, we examine the role of heteroatoms--including O, P, S, and Se, as well as C atoms in various oxidation states--separated from the ferrocenes by intervening double