Enantiospecific Total Synthesis of (−)-4-Thiocyanatoneopupukeanane
作者:A. Srikrishna、Santosh J. Gharpure
DOI:10.1021/jo0102765
日期:2001.6.1
Enantiospecificsynthesis of the natural enantiomer of the marine sesquiterpene (-)-4-thiocyanatoneopupukeanane (6) is described. The bicyclo[2.2.2]octanecarboxylate 14, obtained from (R)-carvone via Michael-Michael reaction, was transformed into neopupukeananedione 12 by employing rhodium acetate catalyzed intramolecular C-H insertion of the diazo ketones 16 or 19 as the key reaction. Regioselective