The Synthesis of Some Esters and Amides of β,β-Diarylacrylic Acids
作者:SAUL. PATAI、RAPHAEL. IKAN
DOI:10.1021/jo01118a012
日期:1956.12.1
The First Preparation of β-Lactones by Radical Cyclization
作者:Kerstin Castle、Chee-San Hau、J. B. Sweeney、Craig Tindall
DOI:10.1021/ol0340235
日期:2003.3.1
[GRAPHICS]beta-Lactones have, for the first time, been prepared by 4-exo-trig radical cyclization. Thus, alpha-ethenoyloxy radicals react in the presence of tributylstannane in a photothermal process to give beta-lactones. Highest yields were obtained when groups capable of stabilizing a carboncentered radical were present at the 3-position of the alkenoate acceptor.
ADAM, W.;BERKESSEL, A.;PETERS, E. -M.;PETERS, K.;VON, SCHNERING, H. G., J. ORG. CHEM., 1985, 50, N 16, 2811-2814
作者:ADAM, W.、BERKESSEL, A.、PETERS, E. -M.、PETERS, K.、VON, SCHNERING, H. G.
DOI:——
日期:——
Palladium-catalyzed double arylations of terminal olefins in acetic acid
作者:Daichao Xu、Chunxin Lu、Wanzhi Chen
DOI:10.1016/j.tet.2011.12.017
日期:2012.2
A palladium-catalyzed Heck diarylation of terminalolefins under ligand-free conditions in acetic acid is described. This procedure allows double arylation of terminalolefins affording trisubstituted olefins in good to excellent yields. The methodology is applicable to the coupling of both electron-deficient and electron-rich aryl iodides leading to symmetrical and unsymmetrical β,β-diarylated alkenes