Copper-Catalyzed Asymmetric Cyanation of Alkenes via Carbonyl-Assisted Coupling of Alkyl-Substituted Carbon-Centered Radicals
作者:Song Zhou、Guoyu Zhang、Liang Fu、Pinhong Chen、Yibiao Li、Guosheng Liu
DOI:10.1021/acs.orglett.0c02085
日期:2020.8.21
the first copper-catalyzed asymmetric cyanation of alkyl-substituted alkenes has been developed. The reaction, featuring mild reaction conditions and excellent functional group compatibilities, provides an easy access to a wide array of structurally diverse enantioenriched alkyl nitriles in good yields. Notably, an unstable carbon-centered radical generated by trifluoromethyl radical addition across terminal
Synthesis of β,γ-Unsaturated Carboxylic Acid Esters via Aryloxycarbonylation of Allylsilanes
作者:Herbert Mayr、Anton Cambanis、Englbert Bäuml
DOI:10.1055/s-1988-27766
日期:——
The β,γ-unsaturated carboxylic acid 4-chlorophenyl esters 3a-e are synthesized from the allylsilanes 2a-e and dichlorobis(4-chlorophenoxy)methane (1) in the presence of 1.1 equivalents of tin(IV) chloride.