Enantiodivergency and Enantioconvergency in the Synthesis of the Dendrobate Alkaloid 241D
作者:Nemai Saha、Shital K Chattopadhyay
DOI:10.1021/jo3019329
日期:2012.12.21
diastereodivergent preparation of two N-alkenylnitrones (9 and 11) from easily available (R)-2,3-O-cyclohexylideneglyceraldehyde (5) led to an enantiodivergent synthesis of both enantiomers of the dendrobate alkaloid 241D in a sequential two-directional approach involving intramolecular nitrone cycloaddition as the key step. Either of these two nitrones could, in principle, be utilized for the preparation of