Phenyl- and vinyllithiums having an alkyl substituent at their ortho- and cis-position, respectively, readily added to alkynes in the presence of 5 mol% of Fe(acac)(3). The reaction of o-(trimethylsilyl)phenyllithium with alkynes gave benzosiloles through an addition-cyclization sequence.
The electrocatalytic 2eORR activity of the graphdiyne catalyst toward H2O2 production is successfully adjusted by steering the sp-carbon content in graphdiyne from 20 at % to 50 at %.
通过将石墨二炔中的sp-碳含量从20at%调整至50at%,成功地调节了石墨二炔催化剂对H 2 O 2生产的电催化2eORR活性。