Entry

R

Product

Method A Time (min)/yield (%)

Method A Time (min)/yield (%)

M.P. (˚C) Found reported

1

C₆H₅-

3a

60/80

6.5/84

232 - 234

230 - 232 [22]

2

3-NO₂C₆H₄-

3b

45/90

7.5/80

234 - 236

234 - 236 [22]

3

4-NO₂C₆H₄-

3c

60/90

4.5/90

237 - 240

232 - 234 [22]

4

3-BrC₆H₄-

3d

60/87

7.0/92

225 - 228

287 [12]

5

4-ClC₆H₄-

3e

60/85

5.5/76

258 - 260

256 - 258 [22]

6

2,4-(Cl)₂C₆H₃-

3f

90/88

8.0/85

190 - 195

198 - 200 [29]

7

2,6-(Cl)₂C₆H₃-

3g

45/90

6.0/93

125 - 130

178 - 180 [28]

8

2-MeC₆H₄-

3h

90/85

8.5/83

218 - 220

221 - 223 [22]

9

4-MeC₆H₄-

3i

78/85

6.5/85

266 - 265

266 - 268 [22]

10

2-MeOC₆H₄-

3j

90/80

8.0/82

213 - 215

214 - 215 [13]

11

4-MeOC₆H₄-

3k

90/87

8.0/90

249 - 251

246 - 248 [22]

12

2,4-(MeO)₂C₆H₃-

3l

120/75

10.0/75

203 - 205

197 - 198 [13]

13

3,4,5-(MeO)₃C₆H₂-

3m

120/70

9.0/68

240 - 245

241 - 243 [13]

14

2-HOC₆H₄-

3n

90/86

8.5/88

250 - 255

254 - 256 [15]

15

4-(Me₂N)C₆H₄-

3o

90/80

8.5/87

210 - 215

216 - 217 [26]

16

Propionaldehyde

3p

60/87

6.0/92

140 - 142

144 - 146 [27]

17

2-(Prop-2-ynyloxy)-C₁₀H₆-

3q

150/60

15/78

168 - 172

-