Abstract
Diastereoselective electrophilic heteroatom cyclizations of the monosulfates of homoallyl and allyl alcohols are described. This cyclization tends to afford thermodynamically favored products, and high 1,3-asymmetric induction is observed in the case of homoallyl alcohols.
Acknowledgments
This work was supported in part by Waseda University Grant for Special Research Projects (Individual Research). We thank Dr. Motoo Shiro of Rigaku X-Ray Research Laboratory for the X-ray crystal structure determination of 2a( syn ).