Customized Buchwald-type phosphines bearing an “inverted” pyrimidinium betaine as an aryl group surrogate – synthesis and coordination chemistry with gold(I) was written by Noel-Duchesneau, Ludovik;Lugan, Noel;Lavigne, Guy;Labande, Agnes;Cesar, Vincent. And the article was included in European Journal of Inorganic Chemistry in 2015.Quality Control of Ethyl (2-bromophenyl)acetate This article mentions the following:
A new ligand scaffold I (1, R = iPr) inspired by Buchwald-type phosphines is disclosed. Its design consists of the formal replacement of the distal aryl group of the original archetype by a pyrimidinium betaine connected to the o-phosphinophenyl moiety through the C-5 position of its malonate subunit. A productive synthetic pathway towards this phosphine is described along with its ability to coordinate to a gold(I) center. A weak bonding interaction between the metal center and the malonate group is observed in the solid state. In the experiment, the researchers used many compounds, for example, Ethyl (2-bromophenyl)acetate (cas: 2178-24-7Quality Control of Ethyl (2-bromophenyl)acetate).
Ethyl (2-bromophenyl)acetate (cas: 2178-24-7) belongs to organobromine compounds. A variety of minor organobromine compounds are found in nature, but none are biosynthesized or required by mammals. Organobromine compounds have fallen under increased scrutiny for their environmental impact. The reactivity of organobromine compounds resembles but is intermediate between the reactivity of organochlorine and organoiodine compounds. For many applications, organobromides represent a compromise of reactivity and cost.Quality Control of Ethyl (2-bromophenyl)acetate
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary