Ni^II(BAPTE)(NO₃)₂-Cell catalyzed synthesis of spirooxindole derivatives.

Entry	Compound 4	Product	Yielda (%)
5a			95 (ref. 97)
5b			92 (ref. 97)
5c			95 (ref. 98)
5d			96 (ref. 97)
5e			87 (ref. 98)
5f			85 (ref. 99)
5g			87 (ref. 100)
5h			80 (ref. 97)
5i			80 (ref. 99)
5j			75 (ref. 101)

^aIsolated yields.