Development of the first menthane-based chiral bis(锜?allylpalladium) catalysis: asymmetric allylation of imines was written by Fernandes, Rodney A.;Chaudhari, Dipali A.. And the article was included in European Journal of Organic Chemistry in 2012.Application of 28322-40-9 This article mentions the following:
A new ethylidene menthane-based chiral 锜?allylpalladium complex catalyzes the asym. allylation of various imines with allyltributylstannane and 1 equivalent of water to give chiral homoallylamines in good yields and enantioselectivities. The reaction was carried out essentially under neutral conditions and displayed a good transfer of chiral information from the menthane skeleton through the formation of a bis(锜?allylpalladium) species. This is the first example of menthane-based chiral bis(锜?allylpalladium) catalysis. In the experiment, the researchers used many compounds, for example, Isopentyltriphenylphosphonium bromide (cas: 28322-40-9Application of 28322-40-9).
Isopentyltriphenylphosphonium bromide (cas: 28322-40-9) belongs to organobromine compounds. Most organobromine compounds, like most organohalide compounds, are relatively nonpolar. Commercially available organobromine pharmaceuticals include the vasodilator nicergoline, the sedative brotizolam, the anticancer agent pipobroman, and the antiseptic merbromin. Application of 28322-40-9
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary