Figure 6: Scope of Ni(II)-catalysed [3+2] cycloaddition.
From: Naked d-orbital in a centrochiral Ni(II) complex as a catalyst for asymmetric [3+2] cycloaddition
*Yields are for isolated materials. †d.r. values were determined from 1H NMR spectra of crude mixture. ‡Run for 48 h. ¶2.0 equiv. of 2a was used. §Run at a concentration of 1.0 M. #10 mol% of metal complex and 3.0 equiv. of 2a and Et3N (10 mol%) were used. **10 mol% of metal complex and 3.0 equiv. of 2a were used.
