Intramolecular Cyclopropanation of Glycals: Studies toward the Synthesis of Canadensolide, Sporothriolide, and Xylobovide
摘要:
[GRAPHICS]The first examples of copper-catalyzed intramolecular cyclopropanations of glycal-derived diazoacetates are reported. The new cyclopropanes are converted Into advanced intermediates for the synthesis of bislactone natural products. Synthetic highlights include the selective monodeprotection of a di-tert-butylsilylene ether and a zinc-mediated ring opening cascade reaction.
Intramolecular Cyclopropanation of Glycals: Studies toward the Synthesis of Canadensolide, Sporothriolide, and Xylobovide
摘要:
[GRAPHICS]The first examples of copper-catalyzed intramolecular cyclopropanations of glycal-derived diazoacetates are reported. The new cyclopropanes are converted Into advanced intermediates for the synthesis of bislactone natural products. Synthetic highlights include the selective monodeprotection of a di-tert-butylsilylene ether and a zinc-mediated ring opening cascade reaction.
Intramolecular Cyclopropanation of Glycals: Studies toward the Synthesis of Canadensolide, Sporothriolide, and Xylobovide
作者:Ming Yu、Vincent Lynch、Brian L. Pagenkopf
DOI:10.1021/ol016239h
日期:2001.8.9
[GRAPHICS]The first examples of copper-catalyzed intramolecular cyclopropanations of glycal-derived diazoacetates are reported. The new cyclopropanes are converted Into advanced intermediates for the synthesis of bislactone natural products. Synthetic highlights include the selective monodeprotection of a di-tert-butylsilylene ether and a zinc-mediated ring opening cascade reaction.