Technical Notes:
1. Michael/Alkylation Cascade Reaction: A rapid and efficient org anocatalytic cascade sequence for the
direct construction of spirocyclopenta ne bioxindoles has been carried out by using a chiral squaramide catalyst in the presence of a base.
References:
1.Chem. Eur. J., 2012, 18, 6737-6741.
Strem