A new method for the formation of nitrogen-containing ring systems via the intramolecular photocycloaddition of vinylogous amides. A synthesis of mesembrine
WINKLER, JEFFREY D.;MULLER, CHERYL L.;SCOTT, ROBERT D., J. AMER. CHEM. SOC., 110,(1988) N 14, 4831-4832
作者:WINKLER, JEFFREY D.、MULLER, CHERYL L.、SCOTT, ROBERT D.
DOI:——
日期:——
Application of Furanyl Carbamate Cycloadditions Toward the Synthesis of Hexahydroindolinone Alkaloids
作者:Albert Padwa、Michael A. Brodney、Martin Dimitroff、Bing Liu、Tianhua Wu
DOI:10.1021/jo010020z
日期:2001.5.1
been achieved by an intramolecular Diels--Alder cycloaddition reaction (IMDAF) of furanyl carbamates bearing tethered alkenyl groups. The initially formed [4 + 2]-cycloadduct undergoes nitrogen-assisted ring opening followed by deprotonation of the resulting zwitterion to give the rearranged ketone. The stereochemical outcome of the IMDAF cycloaddition has the sidearm of the tethered alkenyl group oriented
A new method for the formation of nitrogen-containing ring systems via the intramolecular photocycloaddition of vinylogous amides. A synthesis of mesembrine
作者:Jeffrey D. Winkler、Cheryl L. Muller、Robert D. Scott