Table 2.

Oxidant Not Necessary for Cobalt Turnovera^a

entrya	variations from above	Co(ll)+NFTPB	Co(III) BF4	Co(III) CI
1	LI	79	55	44
2	L2	82	56	42
3	L2, in the glovebox	82	56	41
4	L2, 2 equiv of Mn°		76	57
5	L2, NFTPB (0.3 equiv)		70	53
6b	dtbbpyNi(o-ToI)l (2) as	68	49

^aReactions run on 50 μmol scale. Yield determined by GC-FID with internal standard. ^A1-Methyl-2-(4-phenylbutan-2-yl)benzene observed in <1% overall yield (maximum yield is 10%).

^b1-Methyl-2-(4-phenylbutan-2-yl)benzene observed in <1% overall yield (maximum yield is 10%).