. Author manuscript; available in PMC: 2013 Apr 4.

Published in final edited form as: J Am Chem Soc. 2012 Mar 8;134(13):5758–5761. doi: 10.1021/ja300827t

Table 1.

Yields and rates of reductive elimination from 3a-3e.

Complex	R	k (10^-4 s^-1)^a	k (10^-4 s^-1)^a,e	Yield^b
3a	p-CF₃	0.23	-	81^g
3a	p-CF₃	1.8	0.73	94
3a	p-CF₃	3.2^e,f	3.6^f	81
3b	p-Cl	0.62^d	-	77^h
3b	p-Cl	6.7^e	1.3	98
3c	H	2.5^d	11	80
3d	p-OMe	7.4^c	21	94
3e	o-Me	5.9	22	93

First-order rate constants determined by monitoring the decay of the cyanide complex by ¹H NMR spectroscopy (CD₂Cl₂) or ³¹P NMR spectroscopy (DMF).

Yield of the arylnitrile for the reductive elimination step determined by ¹H NMR spectroscopy (in CD₂Cl₂).

Average of 3 separate runs.

Average of 2 separate runs.

At 40 °C.

With 2 equiv. B(C₆F₅)₃.

Yield after 81% conversion of the cyanide complex.

Yield after 87% conversion of 3b.