Entry

Solvent

Temperature (˚C)

Time

Yield (%)

1

CH₂Cl₂

35 - 40

7 hrs

35

2

CCl₄

60 - 65

7 hrs

55

3

CH₃CN

80 - 85

7 hrs

40

4

H₂O

95 - 100

3 hrs

60

5

Ethanol

75 - 78

2.5 hrs

65

6

Ethanol + H₂O

100⁰

25 min

95