Cyclic (Aryl)(Amido)Carbenes: NHCs with Triplet‐like Reactivity
作者:Prakash R. Sultane、Guillermo Ahumada、Daniel Janssen‐Müller、Christopher W. Bielawski
DOI:10.1002/anie.201910350
日期:2019.11.4
(aryl)(amido)carbenes (CArAmCs), which represent a class of electrophilic NHCs that feature low calculated singlet-triplet gaps (ΔEST =19.9 kcal mol-1 ; B3LYP/def2-TZVP) and exhibit reactivity profiles expected from triplet carbenes, are described. The electrophilic properties of the CArAmCs were quantified by analyzing their respective selenium adducts, which exhibited the largest downfield 77 Se NMR chemical