A Gold(I)-Catalyzed Intramolecular Reaction of Propargylic/Homopropargylic Alcohols with Oxirane
作者:Lun-Zhi Dai、Min Shi
DOI:10.1002/chem.200701954
日期:2008.7.1
The gold(I)-catalyzedcycloisomerization of epoxy alkynes in the presence of a nucleophile is an efficientprotocol to provide ketal skeletons with high stereoselectivity. An intramolecular reaction of propargylic/homopropargylic alcohols with oxirane to produce ketal/spiroketals in moderate yields under mild conditions has been reported. Moreover, the mechanism of this kind of reaction has been discussed