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Disulfonated Xantphos for Mass Spectrometric Mechanistic Analysis
Xantphos is a wide bite angle bisphosphine ligand that finds wide application in catalysis. Tracking its behavior during reactions under realistic reaction conditions can be difficult at low concentrations, and while electrospray ionization mass spectrometry (ESI-MS) is effective at real-time monitoring of catalytic reactions, it can only observe ions. Accordingly, we experimented with the dianionic disulfonated version of xantphos as a charged tag for mechanistic analysis. It proved to behavedoi:10.26434/chemrxiv.12797660 fatcat:ugt7mqlagnetxgbzcf3w72lcey