1.1
Reagents:
Magnesium
Solvents:
Tetrahydrofuran
;
reflux; 0.5 h, reflux
1.2
Solvents:
Tetrahydrofuran
;
reflux; 3 h, reflux
1.3
Reagents:
Ammonium chloride
Solvents:
Water

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