01
P-Hydroxybenzaldehyde
02
P-Hydroxybenzaldehyde(excellent)
03
04
05
P-toluene sulfonyl chloride
06
O,P-toluene sulfonamide
07
N-ethyl-o,p-toluene sulfonamide
08
Chloramine T
09
Benzene sulfonyl chloride
10
Benzene sulfonamide
11
N-methyl-p-toluene sulfonamide
12
13
14
O-Nitro-P-Methyl Sulfonyl Toluene
15
O-Toluene Sulfonamide