. 2020 Jun 12;10(14):7449–7463. doi: 10.1021/acscatal.0c01343

Table 1. Optimization of the Reaction Conditions for the Formation of 1, Catalyzed by PPh₄[Co^III(TAML^red)] or [Co^III(TAML^sq)]^e.

entry	catalyst loading (mol %)	solvent	concentration PhINNs (mM) (time, h)	yield (%)
PPh₄[Co^III(TAML^red)]
1	5.0	toluene	48 (16)	40
2	5.0	benzene	48 (16)	41
3	5.0	MeCN	48 (16)	18
4	5.0	CH₂Cl₂	48 (16)	58
5^a	5.0	CH₂Cl₂	48 (16)	44
6	5.0	CH₂Cl₂	24 (16)	77
7	5.0	CH₂Cl₂	24 (2)	76
8	2.5	CH₂Cl₂	24 (2)	64
9^b	2.5	CH₂Cl₂	24 (2)	67
10^c	–	CH₂Cl₂	24 (2)	0
[Co^III(TAML^sq)]
11	5.0	toluene	48 (16)	7
12	5.0	CH₂Cl₂	48 (16)	57
13	5.0	CH₂Cl₂	24 (2)	74
14	2.5	CH₂Cl₂	24 (2)	35
15^b	2.5	CH₂Cl₂	24 (2)	–^d

1.0 equiv styrene was used.

Aerobic conditions.

No catalyst added.

[Co^III(TAML^sq)] is not stable under aerobic conditions.

Yields based on ¹H NMR integration using 1,3,5-trimethoxybenzene as an internal standard..

Table 1. Optimization of the Reaction Conditions for the Formation of 1, Catalyzed by PPh4[CoIII(TAMLred)] or [CoIII(TAMLsq)]e.