1-Iodo-3,4-methylenedioxybenzene → 1,3-Benzodioxole

Beteiligte Stoffe

Reaktionsbedingungen

Reaktionsschritte

280 mgs (1.10 mmol) of bis(pinacolato)diboron under anaerobic conditions in dry methanol (3 ml) in a reaction tube was treated with 2 ml of a 1 M LiOMe solution in methanol. After stirring, 25 mg of CoCl2(dppf)was added followed by 251 mg (1.01 mmol) of 1-iodo-3,4-methylenedioxybenzene. The reaction was warmed to 60° C. and stirred. On gc analysis after 16 hr reaction time, it was found that the required arylboronic acid ester had formed together with 3,4-methylenedioxybenzene.

Herkunft & Nachweise