1.1
Reagents:
Potassium borohydride
Solvents:
Methanol
;
20 °C
2.1
Reagents:
Thionyl chloride
Solvents:
Dichloromethane
;
0 °C
3.1
Solvents:
Acetonitrile
;
reflux
4.1
Reagents:
Potassium hydroxide
Solvents:
Ethanol
,
Water
;
reflux