Diastereoselective Synthesis of 2,6-trans-Disubstituted Piperidinesvia Sequential Cross-Metathesis–Cationic Cyclisation
作者:Stefan Mix、Siegfried Blechert
DOI:10.1002/adsc.200600482
日期:2007.1.8
Ruthenium-catalysed cross-metathesis of protected homoallylamine derivatives with vinyl carbinols furnished allylic alcohols, which underwent stereoconvergent cyclisation to trans-tetrahydropyridines upon treatment with BF3⋅OEt2. The new methodology was used for the preparation of enantiopure piperidine and indolizidine natural products.