Silver-Catalyzed One-Pot Synthesis of Arylnaphthalene Lactones
作者:Nicolas Eghbali、Jennifer Eddy、Paul T. Anastas
DOI:10.1021/jo801213m
日期:2008.9.1
Arylnaphthalene lignan lactones are valuable natural products with promising anticancer and antiviral properties. In an effort to simplify their synthesis, we investigated a one-pot multicomponent coupling reaction between phenylacetylene, carbon dioxide, and 3-bromo-1-phenyl-1-propyne. After the corresponding 1,6-diyne was generated in situ, cyclization afforded the desired product. The level of regioselectivity was enhanced through the tuning of electronic properties. The use of cinnamyl bromide which led to the formation of a 1,6-enyne intermediate was also studied.
Difunctionalization of Alkynes: Synthesis of Novel Fluoropolymer Materials
A Pd‐catalyzed multi‐component carbonylative difluoroalkylation/perfluoroalkylation through the alkynedifunctionalization process has been developed. Besides, new functional fluoropolymermaterials have been successfully synthesized. Owing to the presence of the fluorine element, the materials present excellent chemical resistance, high‐temperature‐resistance and outstanding hydrophobicity simultaneously