Reaktion #670829

Reaktionsgleichung

4-bromostyrene

magnesium

trimethylborate

→

solid

Ausbeute 93.3%

4-vinylbenzeneboronic acid

Ausbeute 93.3%

Lösungsmittel

THF

Reaktionsbedingungen

Vorschrift

The procedure of Example 9 was repeated with the following reagents: 4-bromostyrene (9.15 g, 0.05 mol), magnesium turnings (1.46 g, 0.06 mol), THF (40 mL), and trimethylborate (6.24 g, 0.06 mol in 30 mL of THF). After work-up, an off-white solid (6.9 g, 93 percent) was isolated. 1H and 13C NMR spectra were consistent with the following structure. ##STR13##

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