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. Author manuscript; available in PMC: 2011 Jul 7.
Published in final edited form as: J Am Chem Soc. 2010 Jul 7;132(26):8810–8812. doi: 10.1021/ja103631u

Table 2.

Effect of azolium counterion on conversion.a

graphic file with name nihms214545u1.jpg
X = % conv. 1 h % conv. 2.5 h % conv. 12 h
Cl 10 16 70
OAc 100 na na
CF3CO2 7 10 20
ClO4 0 0 trace
SbF6 0 0 0
SbF6 + NMM(30%) 30 35 86
a

Determined by 1H NMR analysis against an internal standard.