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Reversing Lewis acidity from bismuth to antimony

Investigations on the boundaries between the neutral and cationic models of (Mesityl) 2 EX (E = Sb, Bi and X = Cl − , OTf − ) have facilitated reversing the Lewis acidity from bismuth to antimony. We use this concept to demonstrate a higher efficiency of (Mesityl) 2 SbOTf over (Mesityl) 2 BiOTf in t...

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Bibliographic Details
Published in:Chemical communications (Cambridge, England) England), 2021-09, Vol.57 (71), p.8889-8892
Main Authors: Sharma, Deepti, Balasubramaniam, Selvakumar, Kumar, Sandeep, Jemmis, Eluvathingal D, Venugopal, Ajay
Format: Article
Language:English
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Summary:Investigations on the boundaries between the neutral and cationic models of (Mesityl) 2 EX (E = Sb, Bi and X = Cl − , OTf − ) have facilitated reversing the Lewis acidity from bismuth to antimony. We use this concept to demonstrate a higher efficiency of (Mesityl) 2 SbOTf over (Mesityl) 2 BiOTf in the catalytic reduction of phosphine oxides to phosphines. The experiments supported with computations described herein will find use in designing new Lewis acids relevant to catalysis. Investigations on the boundaries between the neutral and cationic models of (Mesityl) 2 EX (E = Sb, Bi and X = Cl − , OTf − ) have facilitated reversing the Lewis acidity from bismuth to antimony.
ISSN:1359-7345
1364-548X
DOI:10.1039/d1cc03038h