A simple ketone as an efficient metal-free catalyst for visible-light-mediated Diels–Alder and aza-Diels–Alder reactions
作者:Jiri Kollmann、Yu Zhang、Waldemar Schilling、Tong Zhang、Daniel Riemer、Shoubhik Das
DOI:10.1039/c9gc00485h
日期:——
Diels–Alder reactions are highly effective between electron-rich dienes and electron-poor dienophiles. However, these reactions with electron-rich dienophiles are limited and require forcing conditions. Based on this, an efficientmetal-free homogeneous system has been developed for the Diels–Alder reactions between electron-rich dienophiles and dienes under visible-light conditions. Additionally,
A New Approach to Di- and Tetrasubstituted 2,3-Dihydropyridin-4(1H)-ones through Aza-Diels-Alder Reaction Promoted by Silicon Tetrachloride
作者:Antonio Massa、Vincenzo de Sio、Rosaria Villano、M. Acocella、Laura Palombi、Giusi Sellitto、Antonella Peduto、Rosanna Filosa、Paolo De Capraris、Arrigo Scettri
DOI:10.1055/s-0028-1087677
日期:2009.2
Silicon tetrachloride promotes an aza-Diels-Alderreaction with a range of imines and Danishefsky’s diene or an alkylated derivative, giving the desired products in good to excellent yields. aza-Diels-Alderreaction - heterocycles - silicon tetrachloride