Total Synthesis of Dumsin. 1. Retrosynthetic Strategy and the Elaboration of Key Intermediates from (−)-Bornyl Acetate
作者:Leo A. Paquette、Fang-Tsao Hong
DOI:10.1021/jo0301346
日期:2003.9.1
An intramolecular anionic oxy-Cope rearrangement (44 --> 46) serves as the key step in a synthetic approach to the insect antifeedant dumsin. Initial investigations clarified the manner in which (--)-bornyl acetate may be transformed into the exo-norbornenol 44. Two routes were developed to advance beyond 46. The first involved acetal 51 as a matrix that was expected to allow the elaboration of rings