Alkylation of allylic derivatives. 3. The regiochemistry of alkylation of the isomeric trans-.alpha.,.gamma.-methylphenylallyl acetates with lithium dialkylcuprates
Peroxide promoted tunable decarboxylative alkylation of cinnamic acids to form alkenes or ketones under metal-free conditions
作者:Jing Ji、Ping Liu、Peipei Sun
DOI:10.1039/c5cc01762a
日期:——
In the presence of DTBP or DTBP/TBHP, the decarboxylative alkylation of cinnamic acids with alkanes gave alkenes and ketones respectively via a radical mechanism in moderate to good yields.
Copper catalyzed direct alkenylation of simple alkanes with styrenes
作者:Yefeng Zhu、Yunyang Wei
DOI:10.1039/c4sc00093e
日期:——
A novel Cu-catalyzed direct alkenylation of simple alkanes with styrenes was described. In the presence of a catalytic amount of Cu(OTf)2, a diverse range of alkenes undergo coupling with cycloalkanes to produce (E)-alkyl alkenes. This transformation is proposed to proceed via a radical process.
Nickel-Catalyzed Denitrated Coupling Reaction of Nitroalkenes with Aliphatic and Aromatic Alkenes
作者:Na Zhang、Zheng-Jun Quan、Xi-Cun Wang
DOI:10.1002/adsc.201600586
日期:2016.10.20
A simple and practical denitrated coupling reaction of nitroalkenes with various alkenes using a nickel catalyst and triethoxysilane [(EtO)3SiH] as reducing agent was achieved. Under mild reaction conditions, both aliphatic and aromatic alkenes could react with nitroalkenes to obtain a series of olefins with different functional groups in satisfactory yields under an air atmosphere, which were previously