Chemoselective Reductive Cross-Coupling of 1,5-Diene-3-ols with Alkynes: A Facile Entry to Stereodefined Skipped Trienes
作者:Peter S. Diez、Glenn C. Micalizio
DOI:10.1021/ja103836h
日期:2010.7.21
A convergentsynthesis of highly substituted and stereodefined skipped polyenes is described from the reductive cross-coupling of substituted 1,5-diene-3-ols with alkynes. The control of site selectivity in functionalization of the substituted diene is a central feature of this complex fragment union reaction.
Manisse,N. et al., Bulletin de la Societe Chimique de France, 1972, p. 2422 - 2429
作者:Manisse,N. et al.
DOI:——
日期:——
Reactivity of Arynes for Arene Dearomatization
作者:Rajdip Karmakar、Anh Le、Peipei Xie、Yuanzhi Xia、Daesung Lee
DOI:10.1021/acs.orglett.8b01466
日期:2018.7.20
An unprecedented aryne-mediated dearomatization reaction is described. An aryne intermediate generated from arenesulfonyl ynamide-tethered triynes and tetraynes reacts with both the pi-systems of a tethered alkene and the arenesulfonyl group to generate cyclohexa-1,3-diene-containing pentacyclic and hexacyclic frameworks. Density functional theory (DFT) calculations show a nucleophilic dearomatization mechanism involving a zwitterionic intermediate derived from an aryne. A novel halogen effect on the efficiency of the dearomatization and deterrence of aromatization of the cyclohexa-1,3-diene moiety was also observed.
Coupling of allylic alcohol epoxides with sulfur-stabilized allylic anions
作者:James A. Marshall、Robert C. Andrews
DOI:10.1021/jo00210a009
日期:1985.5
MARSHALL, J. A.;ANDREWS, R. C., J. ORG. CHEM., 1985, 50, N 10, 1602-1606