Synthesis, Structure, and Properties of Tris(2,6-diisopropyl-4-methoxyphenyl)phosphine

Abstract

Tris(2,6-diisopropyl-4-methoxyphenyl)phosphine (1) was synthesized to investigate substituent effect of methoxy groups on the properties of crowded triarylphosphines. Methoxy groups slightly lower the first oxidation potential of 1 and contribute blue-shift of UV-Vis absorption as compared with the corresponding 2,4,6-triisopropylphenyl derivative.

Keywords:

• Oxidation potential
• Triarylphosphine
• UV-Vis spectrum

Acknowledgments

We thank Grants-in-Aid for Scientific Research from the Ministry of Education, Culture, Sports, Science and Technology, Japan (Nos. 17310063, 15550025 and 13304049) for financial support, Research and Analytical Center for Giant Molecules, Graduate School of Science, Tohoku University, for taking mass spectra and elemental analysis.