1.1
Reagents:
Potassium carbonate
Solvents:
Acetone
;
overnight, rt → reflux
2.1
Reagents:
Lithium diisopropylamide
Solvents:
Tetrahydrofuran
;
1 h, -78 °C; 10 min
2.2
Solvents:
Tetrahydrofuran
;
30 min; 2 h
2.3
Reagents:
Carbon dioxide
3.1
Reagents:
Lithium borohydride
Solvents:
Tetrahydrofuran
;
0 °C; 0 °C → rt; overnight, rt
3.2
Reagents:
Water
;
rt
4.1
Reagents:
Sodium hydroxide
Solvents:
Ethanol
;
6 h, 330 °C