Stannylfuranones in synthesis: Highly enantioselective preparation of (+)-hamabiwalactone B
摘要:
An unambiguous and highly enantioselective total synthesis of the naturally-occurring 2(5H)-furanone hamabiwalactone B has been achieved. The key step is a Stille coupling of novel stannylfuranone 2 with (E)-iodoalkene 3, The enantiomeric purity of the synthetic natural product was greater than or equal to 99%, as judged by chiral HPLC, (C) 1998 Published by Elsevier Science Ltd. All rights reserved.
Development of a Method for the Synthesis of a-Substituted a,b-Unsaturated Lactones Based on Stille-Type Pd-catalyzed Carbonylation of (Z)-w-Iodoalkenols. An Efficient and Selective Synthesis of (+)-Hamabiwa-lactone B