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. 2020 Mar 31;11(16):4204–4208. doi: 10.1039/d0sc01138j

Optimisation of catalyst. Yields were determined by 19F NMR analysis using 1-bromo-4-fluorobenzene as an internal standard.

graphic file with name d0sc01138j-u1.jpg
Entry [Ru] 3aa (yield%)
1a Ru(p-cymene)(CO2Mes)2 81
2b Ru(p-cymene)(CO2Mes)2 60
3 Ru(p-cymene)(CO2Mes)2 86
4 [Ru(tBuCN)6][BF4]2 0
5 [Ru(C6H6)(OPiv)2] 25
6 [Ru(C 6 Me 6 )(OAc) 2 ] 93
a

Without LiOAc and AcOH.

b

Without AcOH.