Stereo- and Regiocontrolled Construction of Trisubstituted Piperidines Using a TpMo(CO)<sub>2</sub>(Dihydropyridine) Scaffold (Tp = Hydridotrispyrazolylborate)
作者:Alessandro F. Moretto、Lanny S. Liebeskind
DOI:10.1021/jo0007128
日期:2000.11.1
Cationic TpMo(CO)(2)(dihydropyridine) complexes (Tp = hydridotrispyrazolylborate), readily generated from 3-oxo-3,6-dihydro-2H-pyridine-1-carboxylic acid benzyl ester, represent scaffolds from which (by judicious choice of demetalation conditions) either 2,3,6- or 2,5,6-trisubstituted-1,2,3,6- tetrahydropyridines can be prepared in a regio- and stereodefined way.