1.1
Reagents:
Butyllithium
Solvents:
Tetrahydrofuran
,
Hexane
;
0 °C; 1 h, 0 °C
1.2
Reagents:
Triisopropyl borate
;
0 °C; rt
1.3
Reagents:
Sodium hydroxide
,
Hydroxylamine-O-sulfonic acid
Solvents:
Water
;
16 h, rt

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