1.1
Reagents:
Tripotassium phosphate
Solvents:
Toluene
,
Water
;
rt → 45 °C; 1 h, 45 °C
1.2
Reagents:
Tripotassium phosphate
Catalysts:
Cinchonanium, 1-[[3,5-bis(trifluoromethyl)phenyl]methyl]-9-hydroxy-1′-[[3-(trifl…
Solvents:
Dimethylformamide
;
45 °C → 0 °C; 5 h, 0 °C
1.3
Reagents:
Glycolic acid
;
0 °C → 50 °C; 2 h, 50 °C
1.4
Reagents:
Ethyl acetate
Solvents:
Toluene
;
rt → 45 °C; 2 h, 45 °C

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