Cyclopropylmethyl- and cyclobutylmethyllithium by an arene-catalyzed lithiation. Stability and reactivity
作者:Itziar Peñafiel、Isidro M. Pastor、Miguel Yus
DOI:10.1016/j.tet.2010.02.090
日期:2010.4
presence of different carbonyl compounds as electrophiles, in THF at −78 °C leads, after hydrolysis, to the corresponding cycloalkyl alcohols 6 and 9, respectively. However, when the same starting materials are lithiated using naphthalene as catalyst in diethylether and at higher temperature (0 or 25 °C), and then react with the same electrophiles, the final hydrolysis yields the corresponding unsaturated
Combining Gold and Photoredox Catalysis: Visible Light-Mediated Oxy- and Aminoarylation of Alkenes
作者:Basudev Sahoo、Matthew N. Hopkinson、Frank Glorius
DOI:10.1021/ja400311h
日期:2013.4.17
A room-temperature intramolecular oxy- and aminoarylation of alkenes with aryldiazonium salts has been developed using a novel gold and photoredox dual-catalytic system. The compatibility of these two catalytic modes has been established for the first time and demonstrates the potential of this system as a method to expand the scope of nucleophilic addition reactions to carbon-carbon multiple bonds