| 主权项 |
1. An aryl phosphine of Formula (I): where n is an integer in a range from 1 to 3, where R1 and R3 are independently selected from the group consisting of H, a substituted or unsubstituted alkyl having 1 to 18 carbons, and a substituted or unsubstituted phenyl ring, where each R2 and R2′ is independently selected from the group consisting of H, a substituted or unsubstituted alkyl having 1 to 18 carbons, and a substituted or unsubstituted phenyl ring, where R4, R5, R6, and R7 are independently selected from the group consisting of H, a substituted or unsubstituted alkyl having 1 to 18 carbons, a substituted or unsubstituted cycloalkyl having 3 to 18 carbons, a halogen, and a substituted or unsubstituted phenyl ring, where permissible substituents on R1, R2, R2′, R3, R4, R5, R6, and R7 are functional groups that include heteroatoms selected from the group consisting of oxygen, nitrogen, halogens, sulfur, boron, phosphorus, and silicon. |
