Through crucial selective radical tandem process and intramolecular nucleophilic addition, a facile copper-catalyzed four-component cascade has been realized to selectively construct novel sulfonyl-functionalized quinone-fused cyclopenta[b]indole.
Synergistic molecular and heterojunction engineering boosts visible-light photocatalysis of sulfonyl-functionalized perylene diimide polymers.
A highly selective camphor sulfonyl functionalized crown-ether-tethered calix[4]arene organocatalyst is designed for asymmetric Strecker reaction to provide desired cyano adducts in high yields (∼99.9%) and enantioselectivities (up to 99.3% ee).
Electron-withdrawing ligands increase epoxidation activity, but decrease oxyanion reduction catalysis.
A straightforward transition-metal-free sustainable methodology for oxidative cyclopropanation of aza-1,6-enynes has been devised, enabling the synthesis of valuable, functionalized azabicyclo[4.1.0]heptane-2,4,5-triones.