Olefin Cross-Metathesis Reactions at Room Temperature Using the Nonionic Amphiphile “PTS”: Just Add Water
作者:Bruce H. Lipshutz、Grant T. Aguinaldo、Subir Ghorai、Karl Voigtritter
DOI:10.1021/ol800028x
日期:2008.4.1
cross-metathesis reactions in water, involving water-insoluble substrates, at roomtemperature and using commercially available catalysts are reported. The key to success is to include small percentages of the nonionic, vitamin E-based amphiphile "PTS". The nanometermicelles formed accommodate water-insoluble substrates, along with a readily available Ru-based metathesis catalyst. Reactions proceed
[EN] WATER SOLUBLE OLEFIN METATHESIS<br/>[FR] MÉTATHÈSE D'OLÉFINES HYDROSOLUBLES
申请人:UNIV CALIFORNIA
公开号:WO2009009597A1
公开(公告)日:2009-01-15
This invention provides a composition comprising (a) a catalyst; and (b) a solubilizing agent, wherein the catalyst is utilized in a metathesis reaction.
Manipulating Micellar Environments for Enhancing Transition Metal-Catalyzed Cross-Couplings in Water at Room Temperature
作者:Bruce H. Lipshutz、Subir Ghorai、Wendy Wen Yi Leong、Benjamin R. Taft、Daniel V. Krogstad
DOI:10.1021/jo200746y
日期:2011.6.17
The remarkable effects of added salts on the properties of aqueous micelles derived from the amphiphile PTS are described. Most notably, Heck reactions run in the presence of NaCl lead to couplings on aryl bromides in water at roomtemperature. Olefin cross- and ring-closingmetathesis reactions run in the presence of small amounts of pH-lowering KHSO4 are also accelerated, another phenomenon that