Easy wide scope access to luminescent fluorophosphoranes

Area of Science:

• Organophosphorus Chemistry
• Materials Science
• Computational Chemistry

Background:

• Fluorophosphoranes are important luminescent materials.
• Synthesis of these compounds can be challenging.
• Understanding reaction mechanisms is key to optimizing synthesis.

Purpose of the Study:

• To report a near-quantitative synthesis of homologous luminescent fluorophosphoranes.
• To investigate the SNAr cyclization mechanism using Density Functional Theory (DFT).
• To explore alternative pathways for isomerization.

Main Methods:

• Synthesis of (2'-F,2-(PR2)biaryl) phosphines from accessible reagents.
• SNAr cyclization reaction.
• Density Functional Theory (DFT) calculations to study reaction mechanisms.

Main Results:

• Achieved almost quantitative synthesis of target fluorophosphoranes.
• Elucidated the SNAr cyclization mechanism.
• Identified and discussed alternative isomerization pathways.

Conclusions:

• The developed SNAr cyclization is an efficient route to luminescent fluorophosphoranes.
• DFT provides valuable mechanistic insights for reaction optimization.
• Alternative pathways offer flexibility in synthesis design.