Au(PPh3)OPOF2-catalyzed intramolecular [4+2] cycloaddition reaction of dienynes
作者:Soo Min Kim、Ji Hoon Park、Young Keun Chung
DOI:10.1039/c1cc11127b
日期:——
Solvolysis of Au(PPh(3))PF(6) afforded Au(PPh(3))OPOF(2) which is an effective catalyst in the intramolecular [4+2] cycloaddition of unactivated dienynes bearing a terminal alkyne.
Palladium-Catalyzed Oxidative Regio- and Diastereoselective Diarylating Carbocyclization of Dienynes
作者:Min Jiang、Jan-E. Bäckvall
DOI:10.1002/chem.201204555
日期:2013.5.17
Transmetallation: A highly regio‐ and diastereoselectivecarbocyclization involving a palladium‐catalyzed 1,2‐addition of two carbon atoms across a conjugated diene has been developed (see scheme). The reaction is performed with dienynes and an oxygen tether containing a terminal or internal triple bond.
Gold-Catalyzed Diastereoselective Formal Intermolecular [4 + 2 + 1] Cycloaddition of 1,3-Dien-8-yne with Diazo Ester
作者:Yu-Jiang Wang、Xiao-Xiao Li、Zili Chen
DOI:10.1021/acs.joc.0c00146
日期:2020.6.19
example of gold-catalyzed formal intermolecular [4 + 2 + 1] cycloaddition was developed using 1,3-dien-8-yne as C4 and C2 units and diazo ester as the C1 unit, which provides expedient access to a series of structurally complicated [5.3.0] bicyclic adducts in moderate yields with moderate to high diastereoselectivities. The key route involved a cascade process of dienyne cycloisomerization, cyclopropyl