91608-16-1

Basic information

• Product Name: Phosphine, phenylbis(2,4,6-trimethoxyphenyl)-
• CAS NO: 91608-16-1
• Molecular Formula: C24H27O6P
• Molecular Weight: 442.449
• Mol File: 91608-16-1.mol

Chemical Properties

• CAS DataBase Reference: Phosphine, phenylbis(2,4,6-trimethoxyphenyl)-(CAS DataBase Reference)
• NIST Chemistry Reference: Phosphine, phenylbis(2,4,6-trimethoxyphenyl)-(91608-16-1)
• EPA Substance Registry System: Phosphine, phenylbis(2,4,6-trimethoxyphenyl)-(91608-16-1)

Safety Data

• Hazardous Substances Data: 91608-16-1(Hazardous Substances Data)

Upstream product

• 621-23-8 1,2,3-trimethoxybenzene 
• 644-97-3 Dichlorophenylphosphine 

Relevant articles and documents

Experimental Basicities of Superbasic Phosphonium Ylides and Phosphazenes

Experimental basicities of some of the strongest superbases ever measured (phosphonium ylides) are reported, and by employing these compounds, the experimental self-consistent basicity scale of superbases in THF, reaching a pKα (estimate of pKa) of 35 and spanning more than 30 pKa units, has been compiled. Basicities of 47 compounds (around half of which are newly synthesized) are included. The solution basicity of the well-known t-Bu-N=P4(dma)9 phosphazene superbase is now rigorously linked to the scale. The compiled scale is a useful tool for further basicity studies in THF as well as in other solvents, in particular, in acetonitrile. A good correlation between basicities in THF and acetonitrile spanning 25 orders of magnitude gives access to experimentally supported very high (pKa > 40) basicities in acetonitrile, which cannot be directly measured. Analysis of structure-basicity trends is presented.

A Highly Basic and Nucleophilic Triphenylphosphine, Tris(2,4,6-trimethoxyphenyl)phosphine, and Related Compounds

A series of methoxy substituted triphenylphosphines, R3-nPhnP , and their tertiary phosphonium perchlorates have been prepared.The basicity of the title compound, (1), in acetone was f