Synthesis of Indenes via Brønsted Acid Catalyzed Cyclization of Diaryl- and Alkyl Aryl-1,3-dienes
作者:Dahan Eom、Sangjune Park、Youngchul Park、Taekyu Ryu、Phil Ho Lee
DOI:10.1021/ol302271w
日期:2012.11.2
Substituted indenes can be synthesized via the Brønsted acid catalyzed cyclization of diaryl- and alkyl aryl-1,3-dienes. In this approach, treatment of symmetric or unsymmetric diaryl- and alkyl aryl-1,3-dienes with a catalytic amount of trifluoromethanesulfonic acid gives a variety of indene derivatives in good to excellent yields under mild conditions.
A novel palladium(<scp>II</scp>) chloride-promoted addition–rearrangement reaction of terminal olefins with diphenylacetylene
作者:Paul Mushak、Merle A. Battiste
DOI:10.1039/c29690001146
日期:——
In the presence of palladium(II) chloride, ethylene and certain terminalolefins react with diphenylacetylene to give substituted alka-1,3-dienes derived from the symmetrical addition of two olefin units to the acetylenic reactant.