cyanomethyl radical species is generated from a cyanomethylphosphonium ylide by irradiation with visible light in the presence of an iridium complex, a thiol, and ascorbic acid. The cyanomethyl radical species then adds across the C=C double bond of an alkene to form an elongated alkyl radical species that accepts a hydrogen atom from the thiol to produce an elongated aliphaticnitrile. The ascorbic
The present invention provides compounds that modulate the activity of Janus kinases and are useful in the treatment of diseases related to activity of Janus kinases including, for example, immune-related diseases, skin disorders, myeloid proliferative disorders, cancer, and other diseases.
Visible-light-driven 1,2-hydro(cyanomethylation) of alkenes with chloroacetonitrile
作者:Keito Fuke、Tomoya Miura
DOI:10.1039/d3ob01533e
日期:——
A regioselective 1,2-hydro(cyanomethylation) of unactivated aliphatic alkenes is reported. A cyanomethyl radical is generated from haloacetonitriles. This radical adds onto alkenes to form alkyl radicals, which undergo hydrogen atom transfer from thiol to produce one-carbon-extended nitriles. Furthermore, the alkyl radicals are applied to cascade cyclization.