Heterocycles p. 679 - 686 (1998)
Update date:2022-08-03
Topics:
Yoda, Hidemi
Mizutani, Masato
Takabe, Kunihiko
A general route to substituted cyclic ethers has been described by using nucleophilic addition of Grignard reagents to lactones in the presence of CeCl3 followed by the Lewis acid-induced deoxygenation of the corresponding hemiketals with Et3SiH. Stereoselective reduction of the 5-membered adducts to the disubstituted tetrahydrofurans has been also investigated.
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