Asymmetric induction in the cycloaddition reaction of dichloroketene with chiral enol ethers. A versatile approach to optically active cyclopentenone derivatives.
作者:Andrew E. Greene、Florence Charbonnier
DOI:10.1016/s0040-4039(01)80878-9
日期:1985.1
Significant asymmetricinduction has been observed in the cycloaddition reaction of dichloroketene with chiral enol ethers. The resultant diastereomeric cyclobutanones have been converted to synthetically useful α-chlorocyclopentenones in optically active form.
Group transfer addition reactions of selenomalononitriles to chiral enol ethers. Asymmetric radical addition and selenium transfer reactions
作者:Dennis P. Curran、Steven J. Geib、Lung Huang Kuo
DOI:10.1016/s0040-4039(00)73400-9
日期:1994.8
Group transfer additionreactions of alkyl phenylselenomalononitriles to enol ethers derived from trans-2-phenylcyclohexanol and 8-phenylmenthol occur cleanly, and moderate to excellent stereoselection is observed in both the radical addition and phenylselenium transfer steps.