Atom-Transfer Radical Addition of Alcohols to Aliphatic Alkynes
作者:Yingxia Xiao、Zhong-Quan Liu
DOI:10.1021/acs.joc.9b00804
日期:2019.8.2
An intermolecular hydrogen bond-promoted atom-transfer radicaladdition of simple alcohols to aliphatic alkynes is demonstrated here. Through this strategy, a variety of allyl alcohols can be synthesized in high selectivity and yields. Furthermore, this work reveals the relationship between selectivity and the substrate.
Palladium(II)-Catalyzed Highly Regio- and Diastereoselective Cyclization of Difunctional Allylic <i>N</i>-Tosylcarbamates. A Convenient Synthesis of Optically Active 4-Vinyl-2-oxazolidinones and Total Synthesis of 1,4-Dideoxy-1,4-imino-<scp>l</scp>-xylitol
作者:Aiwen Lei、Guosheng Liu、Xiyan Lu
DOI:10.1021/jo0161429
日期:2002.2.1
A Pd(II)-catalyzed cyclization of difunctional allylic N-tosyl carbamates in the presence of halide ions was developed with high regio- and diastereoselectivity. The reaction involves aminopalladation of alkene and beta-heteroatom elimination to regenerate Pd(II) species. When the readily available homochiral alcohols were used as substrates, highly opticallyactive 4-vinyl-2-oxazolidinones were easily