Sterically crowded triarylphosphines bearing cyano groups
作者:Shigeru Sasaki
DOI:10.1016/j.tetlet.2018.04.065
日期:2018.6
triarylphosphines bearing one, two, and three cyanogroups at 4-positions of aromatic substituents, namely, (4-cyano-2,6-diisopropylphenyl)n(2,4,6-triisopropylphenyl)3–nP (n = 1, 2, 3), were synthesized. Influence of the introduction of cyanogroups is clearly reflected to the oxidation potentials and the fluorescence wavelengths. As the number of cyanogroups increases, the oxidation potentials are raised