Enantioselective semireduction of allenes was written by Chen, Zhiwei;Dong, Vy M.. And the article was included in Nature Communications in 2017.Electric Literature of C9H11BrO This article mentions the following:
Herein, Rh-catalyzed regio- and enantioselective semiredn. of allenes to generate chiral benzylic motifs is reported. Rh-hydride catalysis solves a synthetic challenge by affording the enantioselective reduction of allenes, thereby yielding access to motifs commonly used in medicinal chem. A designer Josiphos ligand promotes the generation of chiral benzylic isomers, when combined with a Hantzsch ester as the reductant. This semiredn. proceeds chemoselectively in the presence of other functional groups, which are typically reduced using conventional hydrogenations. Isotopic labeling studies support a mechanism where the hydride is delivered to the branched position of a Rh-allyl intermediate. In the experiment, the researchers used many compounds, for example, 1-(2-Bromoethyl)-4-methoxybenzene (cas: 14425-64-0Electric Literature of C9H11BrO).
1-(2-Bromoethyl)-4-methoxybenzene (cas: 14425-64-0) belongs to organobromine compounds. Most organobromine compounds, like most organohalide compounds, are relatively nonpolar. Bromine-containing agents predominate because not only are they more efficient than similar chlorine-containing species, but also the high atomic weight of bromine ensures that it is present in a high mass fraction within most organobromine compounds.Electric Literature of C9H11BrO
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary