B74
Wu, Z., Stadlbauer, J.M. and Walker, D.C.
J. Am. Chem. Soc.,
1992, 114, 3988.
Reaction: C5H5N + Mu
®
MuC5H5N
Type of reaction: addition to ring:
at N (42%), C(ortho) position (28%), C(meta) position (30%)
kM = (5.8
±
0.4) x 109 dm3mol-1s-1
at
pH ~
7
kM = (7.4
±
0.5) x 109 dm3mol-1s-1
at pH = 1.2
KIE = kM / kH = 5.8 x 109
/ 7.8 x 108 = 7.4 at
pH ~ 7
KIE = kM / kH = 7.4 x 109
/ 4 x 108 = 20
at pH ~ 1.2
kH = 7.8 x 108 dm3mol-1s-1
at pH ~ 7; kH = 4 x 108 dm3mol-1s-1
at pH ~ 1
(~ 99 % of solute as C6H5NH+)
from: www.rcdc.nd.edu/compilations/HAtom/H.htm
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