A survey of enoldiazo nucleophilicity in selective C–C bond forming reactions for the synthesis of natural product-like frameworks
作者:Yuxiao Liu、Yu Liu、Charles S. Shanahan、Xichen Xu、Michael P. Doyle
DOI:10.1039/c4ob00709c
日期:——
Sc(OTf)3-catalyzed SN1-like couplings of enoldiazo compounds with carbocations for construction of carbocyclic and heterocyclic scaffolds has been realised.
Intramolecular Oxonium Ylide Formation–[2,3] Sigmatropic Rearrangement of Diazocarbonyl-Substituted Cyclic Unsaturated Acetals: A Formal Synthesis of Hyperolactone C
作者:David M. Hodgson、Stanislav Man、Kimberley J. Powell、Ziga Perko、Minxiang Zeng、Elena Moreno-Clavijo、Amber L. Thompson、Michael D. Moore
DOI:10.1021/jo501893r
日期:2014.10.17
4]non-2-ene-4,6-diones. The process creates adjacent quaternary stereocenters with full control of the relative stereochemistry. An unsymmetrical monomethylated cyclic unsaturated acetal leads to hyperolactoneC, where ylide formation–rearrangement proceeds with high selectivity between subtly nonequivalent acetal oxygen atoms.