The author of 《Intermolecular 1,4-Carboamination of Conjugated Dienes Enabled by Cp*RhIII-Catalyzed C-H Activation》 were Pinkert, Tobias; Wegner, Tristan; Mondal, Shobhan; Glorius, Frank. And the article was published in Angewandte Chemie, International Edition in 2019. Electric Literature of C19H18BrP The author mentioned the following in the article:
A protocol for the three-component 1,4-carboamination of dienes is described. Synthetically versatile Weinreb amides were coupled with 1,3-dienes and readily available dioxazolones as the nitrogen source using [Cp*RhCl2]2-catalyzed C-H activation to deliver the 1,4-carboaminated products. This transformation proceeds under mild reaction conditions and affords the products with high levels of regio- and E-selectivity. Mechanistic investigations suggest an intermediate RhIII-allyl species is trapped by an electrophilic amidation reagent in a redox-neutral fashion. The experimental part of the paper was very detailed, including the reaction process of Methyltriphenylphosphonium bromide(cas: 1779-49-3Electric Literature of C19H18BrP)
Methyltriphenylphosphonium bromide(cas: 1779-49-3) is an organophosphorus compound, with potential use as a precursor and a solvent in organic synthesis. And it is used widely for methylenation via the Wittig reaction.Electric Literature of C19H18BrP
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary