Direct One-Pot Synthesis of 2,3-Diarylbuta-1,3-diene via Self-Coupling of Acetophenones
作者:Xueshun Jia、Jian Li、Shaoyu Li
DOI:10.1055/s-2008-1078412
日期:2008.6
A mild and straightforward route to 2,3-diarylbuta-1,3-diene is described here. By treatment with SmI(2)-Ac(2)O, acetophenone and its analogues underwent self-coupling reactions and subsequent elimination to give a series of 2,3-diarylbuta-1,3-dienes in moderate to good yields.
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.
Facile synthesis of dibranched conjugated dienes via palladium-catalyzed oxidative coupling of N-tosylhydrazones
作者:Huanfeng Jiang、Li He、Xianwei Li、Huoji Chen、Wanqing Wu、Wei Fu
DOI:10.1039/c3cc43593h
日期:——
developed. This process features readily available starting materials and mild reaction conditions. Further transformations of the obtained dibranched 1,3-dienes, through Diels-Alder reactions and indene synthesis, are also demonstrated, which reveal their great potential for synthetic utility.