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1,2,4‐Triazol‐5‐ylidenes versus Imidazol‐2‐ylidenes for the Stabilization of Phosphorus(I) Cations
Author(s) -
Elnajjar Fawzia O.,
Binder Justin F.,
Kosnik Stephanie C.,
Macdonald Charles L. B.
Publication year - 2016
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.201600270
Subject(s) - tetraphenylborate , chemistry , reagent , isopropyl , iodide , boron , phosphorus , medicinal chemistry , ion , organic chemistry , polymer chemistry
The synthesis and characterization of a series of 1,4‐dialkyl‐1,2,4‐triazolium iodide and tetraphenylborate salts featuring methyl, ethyl, and isopropyl substituents and their use as precursors, in conjunction with triphosphenium reagents, to generate 1,4‐dialkyl‐1,2,4‐triazol‐5‐ylidene‐stabilized phosphorus(I) ions is described. The use of tetraphenyl borate salts of both reagents produces the most pure products. The structural and spectroscopic features of the products are compared to those of analogous ions featuring 1,3‐imidazol‐2‐ylidene ligands.