Highly Diastereoselective Synthesis of Tetrahydropyridines by a C–H Activation–Cyclization–Reduction Cascade
作者:Simon Duttwyler、Colin Lu、Arnold L. Rheingold、Robert G. Bergman、Jonathan A. Ellman
DOI:10.1021/ja2119833
日期:2012.3.7
A versatile reaction cascade leading to highly substituted 1,2,3,6-tetrahydropyridines has been developed. It comprises rhodium(I)-catalyzed C-H activation-alkyne coupling followed by electrocyclization and subsequent acid/borohydride-promoted reduction. This one-pot procedure affords the target compounds in up to 95% yield with >95% diastereomeric purity.