Chapter 10: 4
4) Complete the mechanism for the acid-catalyzed tautomerization reaction. Use curved arrows (,'-r)where necessary to show movement of electrons. Fill-in the empty boxes.
,6'H Ll
Ai\,'g?* +\-,
A Cation
fa#l*-) L)
roT- "
H!ci,t
H
A CationR e+enn ul\ Le-- 5tt n c-+*"-*
5) Complete the mechanism for the base-catalyzed tautomerization reaction. Use curved arrows (,^r)where necessary to show movement of electrons. Fill-in the empty boxes.
l*--*-l *u*l* I '-
rli
(-J-
-h
:o:
0H
*'#*
An Anion
t{ {"
t.--J
^ \4"/lJr{dz**-=-
".,r't*r -\LJ
:o:
0H:6' +..o