The water/base intolerance of the previously reported electrophilic phosphonium cations has been overcome by replacing the labile electron-withdrawing groups generally attached to phosphorus (e.g. -F, -OAr, -CF3) with methyl groups. Tri-phosphorus(v) tricationic species, accessible in one-pot from commercially available materials, are air and water/base tolerant, yet are sufficiently Lewis acidic for catalysis.
Phosphorous(v) Lewis acids: Water/base tolerant P3-trimethylated trications / J.M. Bayne, V. Fasano, K.M. Szkop, M.J. Ingleson, D.W. Stephan. - In: CHEMICAL COMMUNICATIONS. - ISSN 1359-7345. - 54:88(2018 Nov 14), pp. 12467-12470. [10.1039/c8cc06564k]
Phosphorous(v) Lewis acids: Water/base tolerant P3-trimethylated trications
V. FasanoCo-primo
;
2018
Abstract
The water/base intolerance of the previously reported electrophilic phosphonium cations has been overcome by replacing the labile electron-withdrawing groups generally attached to phosphorus (e.g. -F, -OAr, -CF3) with methyl groups. Tri-phosphorus(v) tricationic species, accessible in one-pot from commercially available materials, are air and water/base tolerant, yet are sufficiently Lewis acidic for catalysis.
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