1.1
Reagents:
Magnesium
Catalysts:
1,2-Dibromoethane
Solvents:
Tetrahydrofuran
;
> 0.5 h, reflux; 1 h, reflux; 17 h, rt
1.2
Reagents:
Trimethyl borate
Solvents:
Tetrahydrofuran
;
> 0.5 h, -78 °C; < -55 °C; 2 h, rt
1.3
Reagents:
Hydrochloric acid
Solvents:
Water
;
rt



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