Entry

Solvent

Temperature (˚C)

Time

Yield (%)

1

n-hexane

68 - 70

10 hrs

35

2

1,4-dioxane

98 - 102

10 hrs

40

3

Diethyl erher

34 - 36

10 hrs

55

4

H₂O

95 - 100

4 hrs

65

5

Ethanol

75 - 78

3 hrs

70

6

Ethanol + H₂O

94 - 96

40 min

96