Reactants 1

Reactants 2

Product

Yield % (time/min)a

Physical state mp (˚C) (mp litt.)

X

R

1/4 CEC

1/2 CEC

3/4 CEC

NH

H

3a

95 (25)

82 (30)

80 (60)

285 (286 - 289) [41]

NH

NO2

3b

87 (30)

78 (50)

70 (60)

298 (297 - 299)[41]

NH

OMe

3c

96 (20)

93 (40)

73 (60)

226 (226 - 227) [41]

NH

Me

3d

94 (30)

92 (50)

78 (70)

275 (275 - 276) [41]

NH

OH

3e

95 (30)

90 (40)

70 (50)

242 (240 - 242) [42]

NH

Cl

3f

89 (30)

83 (60)

69 (60)

301 (301 - 303) [41]

NH

F

3g

90 (30)

86 (40)

84 (50)

244 (249 - 251) [43]

s

H

4a

86 (40)

70 (50)

65 (90)

112 (114 - 115) [44]

s

NO2

4b

80 (35)

78 (65)

70 (90)

226 (226 - 227) [44]

s

OMe

4c

90 (40)

81 (60)

60 (100)

122 (122 - 124) [44]

s

Me

4d

90 (45)

76 (55)

78 (90)

85 (85 - 86) [44]

s

OH

4e

84 (45)

80 (70)

70 (90)

224 (220 - 224) [45]

s

Cl

4f

78 (40)

80 (70)

69 (90)

116 (116 - 118) [44]

s

F

4g

88 (40)

78 (70)

64 (90)

102 (101 - 103) [44]