1.1
Reagents:
Butyllithium
Solvents:
Diethyl ether
;
rt → -60 °C; < -55 °C; 0.5 h, < -55 °C
1.2
Reagents:
Trimethyl borate
;
< -55 °C; < -55 °C → rt
1.3
Reagents:
Hydrochloric acid
Solvents:
Water
;
0.5 h, rt

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