Development of a Merged Conjugate Addition/Oxidative Coupling Sequence. Application to the Enantioselective Total Synthesis of Metacycloprodigiosin and Prodigiosin R1
作者:Michael D. Clift、Regan J. Thomson
DOI:10.1021/ja906122g
日期:2009.10.14
reagent with subsequent enolate trapping by a (chloro)silylenol ether. The process was applied to the first enantioselective syntheses of the biologically active pyrrolophane natural products, metacycloprodigiosin and prodigiosin R1.
Amino-sugar modular ligands—useful cores for the formation of asymmetric copper 1,4-addition catalysts
作者:Antonella De Roma、Francesco Ruffo、Simon Woodward
DOI:10.1039/b813137f
日期:——
Modular phosphine ligands, synthesised rapidly from commercial N-acetylglucosamine, are very effective in copper(I)-catalysed 1,4-additions of ZnR2 to linear aliphatic enones (87â95% ee).