《Synthesis, Characterization, and Application of Segphos Derivative Having Diferrocenylphosphino-Donor Moieties》 was published in Organometallics in 2020. These research results belong to Hu, Hao; Ichiryu, Hiroki; Seki, Naoki; Nakajima, Kiyohiko; Ohki, Yasuhiro; Ogasawara, Masamichi. Computed Properties of C7H5BrO2 The article mentions the following:
An axially chiral bisphosphine, Fc-Segphos (1), which possesses diferrocenylphosphino-donor moieties, was prepared as a racemate, and its optical resolution was achieved by the use of chiral HPLC. Ligand 1 coordinated to a palladium(II) cation in a bidentate fashion to construct a unique chiral environment at the palladium center due to the sterically demanding ferrocenyl groups. Ligand (R)-1 was applied in the palladium-catalyzed asym. synthesis of axially chiral allenes showing good enantioselectivity of up to 92% ee. In general, (R)-1 displayed better enantioselectivity than the parent Segphos in the palladium-catalyzed reaction, and the Pd/(R)-1 species showed up to 18% ee enhancement over the (R)-Segphos-derived palladium catalyst. In the experimental materials used by the author, we found 5-Bromobenzo[d][1,3]dioxole(cas: 2635-13-4Computed Properties of C7H5BrO2)
Furthermore, the coupling of 5-Bromobenzo[d][1,3]dioxole(cas: 2635-13-4) with β-methallyl alcohol was catalyzed by Pd(OAc)2 in combination with P(t-Bu)3.Computed Properties of C7H5BrO2
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary