The potential of the oxy-Favorskii rearrangement to form branched cis-fused bicyclic ethers was explored. Both tertiary and quaternary centers were constructed in highly stereospecific manners. Methanol and primary amines were effective nucleophiles for the rearrangement. The total synthesis of (±)-communiol E was achieved based on this method.
Synthesis of unsaturated lactones via palladium-catalyzed cyclization of alkenoic acids
作者:Richard C. Larock、Timothy R. Hightower
DOI:10.1021/jo00072a004
日期:1993.9
Acyclic and cyclic, aliphatic or aromatic, 4- or 5-alkenoic acids cyclize in high yield to 5- or 6-membered unsaturated lactones using 5 mol % Pd (OAc) 2, 2 equiv of NaOAc, and 1 atm Of O2.
Critch,S.C.; Fallis,A.G., Canadian Journal of Chemistry, 1977, vol. 55, p. 2845 - 2851
作者:Critch,S.C.、Fallis,A.G.
DOI:——
日期:——
Bokil; Nargund, Journal of the University of Bombay, Science: Physical Sciences, Mathematics, Biological Sciences and Medicine, 1942, vol. 10/A, p. 118