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Table 1 The physicochemical properties of synthesized benzoxazole derivatives (126)

From: Benzoxazole derivatives: design, synthesis and biological evaluation

Comp.

Molecular formula

Molecular structure

M. Wt.

M. Pt.

Rf valuea

% yield

1.

C24H19N5O2S

441.50

180–182

0.58

95

2.

C25H21N5O3S

471.53

242–244

0.52

93

3.

C25H21N5O3S

471.53

224–225

0.51

86

4.

C26H23N5O4S

501.56

233–235

0.55

85

5.

C26H23N5O4S

501.56

256–258

0.55

82

6.

C27H25N5O5S

531.58

263–265

0.56

85

7.

C27H25N5O2S

483.58

184–186

0.60

87

8.

C25H18F3N5O2S

509.50

190–192

0.53

88

9.

C25H18N6O2S

466.51

278–280

0.51

91

10.

C31H25N5O3S

547.63

261–263

0.55

85

11.

C24H18N6O4S

486.50

283–285

0.48

92

12.

C24H18N6O4S

486.50

243–245

0.47

91

13.

C24H18N6O4S

486.50

259–261

0.45

95

14.

C24H18ClN5O2S

475.95

200–202

0.49

92

15.

C24H18ClN5O2S

475.95

237–239

0.44

92

16.

C24H17Cl2N5O2S

510.39

257–259

0.46

94

17.

C24H16F3N5O2S

495.47

178–180

0.52

83

18.

C24H18FN5O2S

459.49

184–186

0.53

93

19.

C24H18BrN5O2S

520.40

247–249

0.51

89

20.

C24H18BrN5O2S

520.40

207–209

0.52

83

21.

C26H20N6O2S

480.54

283–285

0.45

91

22.

C26H21N5O2S

467.54

187–189

0.48

92

23.

C23H18N6O2S

442.49

186–188

0.42

90

24.

C22H17N5O2S2

447.53

205–207

0.49

91

25.

C23H19N5O2S2

461.55

218–220

0.52

93

26.

C24H19N5O3S

457.50

192–194

0.45

95

  1. aTLC mobile phase: chloroform: methanol (9:1)