Lei, Honghui’s team published research in Journal of the American Chemical Society in 2019 | CAS: 530-62-1

Di(1H-imidazol-1-yl)methanone(cas: 530-62-1) is a peptide coupling reagent,it is used in the synthesis of peptides. Reacts readily with carboxylic acids to form acyl imidazoles; subsequent reaction with amines to form amides goes smoothly.Formula: C7H6N4O

The author of 《Ir-Catalyzed Intermolecular Branch-Selective Allylic C-H Amidation of Unactivated Terminal Olefins》 were Lei, Honghui; Rovis, Tomislav. And the article was published in Journal of the American Chemical Society in 2019. Formula: C7H6N4O The author mentioned the following in the article:

An efficient method for intermol. branch-selective allylic C-H amidation has been accomplished via Ir(III) catalysis. The reaction proceeds through initial allylic C-H activation, supported by the isolation and crystallog. characterization of an allyl-Ir(III) intermediate, followed by a subsequent oxidative amidation with readily available dioxazolones as nitrenoid precursors [e.g., 1-decene + dioxazolone I → amide II (73%, > 20:1 rr)]. A diverse range of amides are successfully installed at the branched position of terminal alkenes in good yields and regioselectivities. Importantly, the reaction allows the use of amide-derived nitrenoid precursors avoiding problematic Curtius-type rearrangements. The experimental part of the paper was very detailed, including the reaction process of Di(1H-imidazol-1-yl)methanone(cas: 530-62-1Formula: C7H6N4O)

Di(1H-imidazol-1-yl)methanone(cas: 530-62-1) is a peptide coupling reagent,it is used in the synthesis of peptides. Reacts readily with carboxylic acids to form acyl imidazoles; subsequent reaction with amines to form amides goes smoothly.Formula: C7H6N4O

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem