Synthesis and evaluation of a solid supported molecular tweezer type receptor for cholesterolElectronic supplementary information (ESI) available: synthetic procedures and analytical data for compounds 3–8. See http://www.rsc.org/suppdata/jm/b2/b210427j/
An Improved Sonogashira Coupling Procedure for the Construction of Rigid Aromatic Multifunctional Monomers Bearing 1,3-Substituted Acetylenic Units
作者:Louise Davidson、Keith W. Freebairn、Andrew T. Russell、Harish S. Trivedi、Wayne Hayes
DOI:10.1055/s-2002-19768
日期:——
The efficient synthesis of rigid multifunctional vinylic monomers 1 and 2 from 3,5-dibromobenzene derivatives and propargyl alcohol via the Sonogashirareaction is reported. For example, a series of 3,5-bis(3-hydroxyprop-1-ynl)benzoate ester derivatives have been prepared efficiently using an improved palladium catalyst system. Subsequent hydrolysis and reaction with 4-vinylaniline afforded a new monomer
Synthesis and evaluation of a solid supported molecular tweezer type receptor for cholesterolElectronic supplementary information (ESI) available: synthetic procedures and analytical data for compounds 3–8. See http://www.rsc.org/suppdata/jm/b2/b210427j/
作者:Louise Davidson、Anton Blencowe、Michael G. B. Drew、Keith W. Freebairn、Wayne Hayes
DOI:10.1039/b210427j
日期:2003.3.19
A new macroporous stationary phase bearing ‘tweezer’ receptors that exhibit specificity for cholesterol has been constructed from rigid multifunctional vinylic monomers derived from 3,5-dibromobenzoic acid, propargyl alcohol and cholesterol. The synthesis of the novel tweezer monomer that contains two cholesterol receptor arms using palladium mediated Sonogashira methodologies and carbonate couplings is reported. The subsequent co-polymerisation of this tweezer monomer with a range of cross-linking agents via a ‘pseudo’ molecular imprinting approach afforded a diverse set of macroporous materials. The selectivity and efficacy of these materials for cholesterol binding was assessed using a chromatographic screening process. The optimum macroporous stationary phase material composition was subsequently used to construct monolithic solid phase extraction columns for use in the selective extraction of cholesterol from multi-component mixtures of structurally related steroids.