Ring-Conformer Effects of the Cyclopropyl Group: First Use of trans-(2R,3R)-Cyclopropanecarbaldehydes as Electrophiles in Diastereoselective Baylis-Hillman Reaction
The enantioselective total synthesis of (+)-patulolide C isolated from Penicillium urticae has been achieved from commercially available 9-decen-1-ol. Jacobsen's kinetic resolution and sequential alpha-aminooxylation and Horner-Wadsworth-Emmons (HWE) olefination followed by Yamaguchi lactonization are used as the key reaction steps. (C) 2010 Elsevier Ltd. All rights reserved.