From: Simple isatin derivatives as free radical scavengers: Synthesis, biological evaluation and structure-activity relationship
No.
Solvent
Base
Time (h)
Yield (%)
1
DMF
Na2CO3
24
33
2
K2CO3
12
89
3
NaOH
40
4
KOH
41
5
TEA
60
6
MeOH
7
THF
25
8
DCM
19
9
Acetonitrile
15