Double Stereodifferentiating Aldol Reactions Based on Chiral Ketones Derived from Lactic Acid: Synthesis of C1-C6 Fragment of Erythronolides
作者:Pedro Romea、Fèlix Urpí、Joan G. Solsona、Joaquim Nebot
DOI:10.1055/s-2004-831332
日期:——
Highly stereoselective titanium-mediated aldol additions of ethyl ketones derivedfromlacticacid to α-methyl-β-OTBDPS chiral aldehydes are documented. One of these double stereodifferentiating processes represents the key step of a straightforward and efficient synthetic approach to the C1-C6 fragment of erythronolides.