Reaktion #2172772

Reaktionsgleichung

5-bromo-7-hexyl-3,3-dimethyl-2,3-dihydro-benzofuran

t-butyllithium

tetrahydrofuran

trimethyl borate

Intermediate 53

5-bromo-7-hexyl-3,3-dimethyl-2,3-dihydro-benzofuran

→

title compound

3,3-Dimethyl-7-hexyl-2,3-dihydro-benzofuran-5-boronic acid

Lösungsmittel

n-pentane

Reaktionsbedingungen

Vorschrift

Following General Procedure A and using 5-bromo-7-hexyl-3,3-dimethyl-2,3-dihydro-benzofuran (Intermediate 53, 1.32 g, 4.26 mmol), anhydrous tetrahydrofuran, 1.7M solution of t-butyllithium in n-pentane and trimethyl borate, the title compound was obtained as a foam that was used as such for the next step without purification and characterization.

Quelle