Tetrahedron Letters p. 5277 - 5280 (1986)
Update date:2022-07-31
Topics:
Greck, Christine
Grice, Peter
Ley, Steven V.
Wonnacott, Anne
Deprotonation of 2-benzenesulphonyltetrahydropyrans with n-butyllithium affords anions which react with substituted epoxides to give spiroketals upon acidification.Using this approach a highly convergent synthesis of the C-11 to C-25 fragment of the milbemycins was achieved.
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