| 中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
|---|---|---|---|---|
| —— | dicyclohexyl[2-{6-(dicyclohexylphosphanyl)-2,2,3,3-tetrafluoro-2,3-dihydrobenzo[b][1,4]dioxin-5-yl}phenyl]phosphane | 1325745-96-7 | C38H50F4O2P2 | 676.755 |
Regioselective bromine–lithium exchange reactions on polybrominated biaryls enable the modular synthesis of various polysubstituted biphenyls such as bis(dialkylphosphino)-, bis(diarylphosphino)- and dialkyl(diaryl)phosphinobiphenyls. All permutations of substituents at the ortho positions of the biphenyls are possible. In a similar manner, one can gain access to monophosphine analogues. So far, such a process, based on the effective discrimination between bromine atoms as a function of their chemical environment, has been observed only sporadically.