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This content will become publicly available on December 2, 2025

Title: Tuning Secondary-Sphere Lewis Acidity via Late-Stage Modification of an Appended Borane
To develop synthetic strategies to construct ligands containing secondary sphere acids, we demonstrate that an appended borane of low Lewis acidity (–BPin) can be upgraded to a strong Lewis acid (–BF2). Using a pyridine-pyrazole ligand coordinated to Mo(CO)4, we show that a pendent –BPin group undergoes exhaustive fluorination to –BF3K, a precursor to a highly acidic –BF2 unit (acceptor number ~15x greater than –BPin).  more » « less
Award ID(s):
2154678
PAR ID:
10623704
Author(s) / Creator(s):
; ;
Publisher / Repository:
ACS
Date Published:
Journal Name:
Inorganic Chemistry
Volume:
63
Issue:
48
ISSN:
0020-1669
Page Range / eLocation ID:
22650 to 22655
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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