作者: Philip Norcott , Christopher S. P. McErlean
关键词: Sigmatropic reaction 、 Claisen rearrangement 、 Enantioselective synthesis 、 Total synthesis 、 Sharpless asymmetric dihydroxylation 、 Michael reaction 、 Carroll rearrangement 、 Intramolecular force 、 Stereochemistry 、 Chemistry
摘要: Total syntheses of the spiro-epimeric natural products (–)-heliespirone A and (+)-heliespirone C are described. The successful strategy involved an aromatic Claisen rearrangement, a diastereoselective Sharpless asymmetric dihydroxylation (AD) reaction, intramolecular oxa-Michael addition.