Study of the radical chemistry promoted by tributylborane
作者:Shujuan Liu、Zhen Zheng、Minrui Li、Xinling Wang
DOI:10.1007/s11164-012-0512-2
日期:2012.10
obtained by UPLC/Q-ToF MS analyses. Then the oxidationmechanism was described. To specify the inter-relationships between the oxidation process of trialkylborane and the concomitant radical chemistry, four kinds of alkanes providing different H-abstraction reactivity to alkoxy radical were chosen as radical capturers. The final oxidation products of trialkylborane were characterized by GC–MS and 11B-NMR
Gold nanoparticle-initiated free radical oxidations and halogen abstractions
作者:Petre Ionita、Marco Conte、Bruce C. Gilbert、Victor Chechik
DOI:10.1039/b711573c
日期:——
containing active hydrogenatoms, such as amines and phosphine oxides. Nanoparticles protected by stronger bound ligands (e.g., thiols) were inactive in these reactions. We also found that gold nanoparticles are able to abstract a halogen atom from the halogenated compounds, presumably due to the high affinity of gold metal for halogens. Reaction of Au nanoparticles with chloroform showed an unusual