.iCLiiufi u-i. i^aiaiyuu
(c)
c
CHo
R
Ć ~ O H-"A5
h5+
ch|"
B5*
T
H+
C—O—H + A"
ch2
H—A + OH'
j-— h2o
C—O—H
+
H H+
1“-* +
B+ B
Figurę 15-1 Mechanisms of kct<»-cnol tautomcrization. (a) Uncatalyzcd. (b) generał acid catalyzed. and (c) generał base catalyzcd.