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Updated: Jun 13, 2025

Preparation and Reactivity of a Triphosphenium Bromide Salt: A Convenient and Stable Source of PhosphorusI
Published on: November 22, 2016
Donor Strength Determination of Buchwald-Type Phosphines
Jia Nuo Leung1, Han Vinh Huynh1
1Department of Chemistry, Faculty of Science, National University of Singapore, 3 Science Drive 3, Singapore 117453, Republic of Singapore.
Abstract:
The electronic properties of eight Buchwald-type phosphines were determined and ranked by 13C NMR spectroscopy, highlighting the sensitivity of the Huynh electronic parameter (HEP). Furthermore, the 13Ccarbene NMR signals of 19 known and new P-donor complexes in CDCl3 (HEP values) are found to be highly correlated to those in C6D6. This enables the donor strength determination of P-donors even where the complexes are unstable or undergo rapid isomerization due to transphobia in CDCl3.
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