Deoxydehydration of vicinal diols and polyols catalyzed by pyridinium perrhenate salts

Danny S. Morris, Karlotta Van Rees, Massimiliano Curcio, Mirza Cokoja, Fritz E. Kühn, Jason B. Love, Fernanda Duarte Gonzalez

Research output: Contribution to journalArticlepeer-review

Abstract

Simple ammonium and pyridinium perrhenate salts were evaluated as catalysts for the deoxydehydration (DODH) of diols into alkenes. Pyridinium perrhenates were found to be effective catalysts at much lower temperatures than those in previous reports, outperforming primary, secondary, and tertiary ammonium salts, while quaternary ammonium salts are effectively inactive. The mechanism of reaction was studied computationally using DFT calculations which indicate that proton shuttling between the ion pair is intrinsic to the mechanism and that the reduction of rhenium by the phosphine occurs before the diol condensation.
Original languageEnglish
JournalCatalysis Science & Technology
Early online date25 Oct 2017
DOIs
Publication statusE-pub ahead of print - 25 Oct 2017

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