1.1
Reagents:
Sodium
,
15-Crown-5
Solvents:
Tetrahydrofuran
;
5 min, 0 °C
1.2
Reagents:
Isopropanol
Solvents:
Tetrahydrofuran
;
5 min, 0 °C
1.3
Reagents:
Sodium bicarbonate
Solvents:
Water