Use of conjugated dienones in cyclialkylations: total syntheses of arucadiol, 1, 2-didehydromiltirone,(±)-hinokione,(±)-nimbidiol, sageone, and miltirone

~93%

~%

~%

~61%

~%

~52%

~50%

~%

~%

~%

~%

~%

~%

~%

~%

~63%

~%

~%

~%

~%