Comp
|
Molecular formula
|
MW calculated (g/mol)
|
M.P (°C)
|
Physical state
|
Color
|
% Yield
|
Rf Value
|
---|
1a
|
C6H8N2O2S
|
172.20
|
175–177
|
Solid
|
Off white-pale yellow
|
70
|
0.71
|
2a
|
C13H12N2O2S
|
260.31
|
160–162
|
Crystal
|
Light brown
|
50
|
0.61
|
2b
|
C13H12N2O3S
|
276.31
|
198–199
|
Solid
|
Light brown
|
56
|
0.64
|
2c
|
C13H12N2O3S
|
276.31
|
195–197
|
Solid
|
Orange
|
54
|
0.66
|
2d
|
C13H12N2O3S
|
276.31
|
200–202
|
Solid
|
Brown
|
60
|
0.69
|
2e
|
C14H14N2O4S
|
306.33
|
196–198
|
Solid
|
Light brown
|
50
|
0.61
|
2f
|
C14H14N2O2S
|
274.33
|
190–192
|
Crystal
|
Light brown
|
52
|
0.59
|
2g
|
C14H14N2O3S
|
290.33
|
164–165
|
Crystal
|
Light brown
|
62
|
0.60
|
- Solvent system: ethyl acetate: petroleum ether (3:1), TLC silica HF-254