1.1
Reagents:
Butyllithium
Solvents:
Tetrahydrofuran
,
Hexane
;
-90 °C; < -80 °C; 1 h, -90 °C
1.2
Reagents:
Trimethyl borate
;
0.5 h, -70 °C; -70 °C → -15 °C
1.3
Reagents:
Ammonium chloride
Solvents:
Water
;
neutralized, -15 °C; -15 °C → rt; 1 h, rt

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