《Synthesis of All-Carbon Quaternary Centers by Palladium-Catalyzed Olefin Dicarbofunctionalization》 was published in Angewandte Chemie, International Edition in 2020. These research results belong to Koy, Maximilian; Bellotti, Peter; Katzenburg, Felix; Daniliuc, Constantin G.; Glorius, Frank. Reference of Methyltriphenylphosphonium bromide The article mentions the following:
The redox-neutral dicarbofunctionalization of tri- and tetrasubstituted olefins to form a variety of (hetero)cyclic compounds under photoinduced palladium catalysis is described. This cascade reaction process was used to couple styrenes or acryl amides with a broad range of highly decorated olefins tethered to aryl or alkyl bromides (>50 examples). This procedure enables one or two contiguous all-carbon quaternary centers to be formed in a single step. The products could be readily diversified and applied in the synthesis of a bioactive oxindole analog. The experimental part of the paper was very detailed, including the reaction process of Methyltriphenylphosphonium bromide(cas: 1779-49-3Reference of Methyltriphenylphosphonium bromide)
Methyltriphenylphosphonium bromide(cas: 1779-49-3) is used for methylenation through the Wittig reaction. It is utilized in the synthesis of an enyne and 9-isopropenyl -phenanthrene by using sodium amide as reagent. Reference of Methyltriphenylphosphonium bromide
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary