| Abstrakt: |
Insertion of aluminum to the C–O–C bond of saturated cyclic ethers by the HgCl2–ZnCl2–MeI catalyst system led to the reductive cleavage of 5, 6, and 7 membered ring ethers to give polymeric alkoxyalkylaluminum compounds. The relative rate of the reaction was increased in the order of tetrahydrofuran, 3-methyltetrahydrofuran, 2-methyltetrahydrofuran, 2,5-dimethyltetrahydrofuran, tetrahydropyran, oxepane, 7-oxabicyclo[2.2.1]-heptane, and 2-methyltetrahydropyran. The cleaved cyclic ethers are bonded with aluminum atoms bifunctionally and the resulting polymeric aluminum compound gave dideuterio alcohols upon deuterolysis. Addition reaction of allyl halides and reduction of chloral with the aluminum compound provided a novel route for the preparation of unsaturated alcohols. |
