Key points are not available for this paper at this time.
Closing the circle: The asymmetric 3+2 formal cycloaddition reaction of α-substituted isocyanoesters with nitroolefins is catalyzed by cinchona alkaloid derivatives to yield 2,3-dihydropyrroles with high diastereo- and enantioselectivities (see scheme).
Guo et al. (Tue,) studied this question.