The author of 《Gold-Acetonyl Complexes: From Side-Products to Valuable Synthons》 were Gasperini, Danila; Collado, Alba; Gomez-Suarez, Adrian; Cordes, David B.; Slawin, Alexandra M. Z.; Nolan, Steven P.. And the article was published in Chemistry – A European Journal in 2015. Electric Literature of C27H38AuClN2 The author mentioned the following in the article:
A new synthetic strategy was devised giving complexes, such as [Au(IPr)(CH2COCH3)] (IPr = N,N’-bis(2,6-diisopropylphenyl)imidazol-2-ylidene). The approach capitalizes on the formation of a decomposition product observed in the synthesis of [Au(IPr)(Cl)]. A library of Au acetonyl complexes containing the most common N-heterocyclic carbene (NHC) ligands was synthesized. These acetonyl complexes are good synthons for the preparation of numerous organogold complexes. Moreover, they proved to be precatalysts in common Au(I)-catalyzed reactions. In the experimental materials used by the author, we found Chloro{1,3-bis[2,6-bis(1-methylethyl)phenyl]-4,5-dihydroimidazol-2-ylidene}gold(I)(cas: 852445-84-2Electric Literature of C27H38AuClN2)
Chloro{1,3-bis[2,6-bis(1-methylethyl)phenyl]-4,5-dihydroimidazol-2-ylidene}gold(I)(cas: 852445-84-2) belongs to imidazoles.Imidazole rings are part of unnatural cyclic peptides and are used as ester isosteres in peptidomimetic studies.
Electric Literature of C27H38AuClN2 However, the application of imidazoles is not limited to the field of peptides and peptidomimetics.
Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem