Palladium-Catalyzed Synthesis of Alkynes via a Tandem Decarboxylation/Elimination of (<i>E</i>)-Enol Triflates
作者:Charissa Munteanu、Doug E. Frantz
DOI:10.1021/acs.orglett.6b01904
日期:2016.8.19
catalytic synthesis of alkynes via a tandem Pd-catalyzed decarboxylation/elimination of enol triflates is described. Key attributes of the method include readily available starting materials, broad functional group tolerance, and the ability to access terminal, internal, and halogenated alkynes. The preliminary scope of the reaction is demonstrated on 25 different examples with yields ranging from 63% to
A highly regioselective reduction of propargylic acetates has been attained by using SmI2 and catalytic Pd(0) in the presence of 2,4-dimethyl-3-pentanol affording various types of allenes in high yields.