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.
Semisynthetic Penicillins. II. Structure-Activity Studies on the 2-Biphenylyl Side Chain<sup>1</sup>
作者:R. J. Stedman、J. R. E. Hoover、A. W. Chow、M. M. Dolan、N. M. Hall、R. J. Ferlauto