Diastereoselective Synthesis of Highly Substituted Tetrahydropyran-4-ones
摘要:
[GRAPHICS]Aldol reactions of beta-ketoesters with aldehydes followed by a tandem Knoevenagel condensation, with a further equivalent of aldehyde, and intramolecular Michael addition produces single diastereomers of highly substituted tetrahydropyran-4-ones.