Formation of Organomagnesium Compounds via EtMgBr-Mediated Radical Cyclization of Allyl β-Iodoacetals

Abstract
Treatment of allyl β-iodoacetals with ethylmagnesium bromide in THF provided tetrahydrofuran derivatives in good yields. On the other hand, the reaction in DME provided tetrahydrofuranylmethylmagnesium compounds in good yields.