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Controlling reaction rate of phase transfer hydrogenation of acetophenone by application of low external electric field
  • Nan Wang,
  • Alan Allgeier,
  • Laurence Weatherley
Nan Wang
University of Kansas
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Alan Allgeier
University of Kansas
Author Profile
Laurence Weatherley
University of Kansas
Author Profile

Abstract

The controllable mass transfer and reaction rate for phase transfer hydrogenation of acetophenone across a well-defined boundary were investigated. The effect of solvent was found important and 1-butanol exhibited the best performance among the five investigated homologous alcohol solvents, consistent with its higher solubility in water and greater dielectric constant. Initial reaction rates increased with increasing electric potential, consistent with enhanced mass transfer across the aqueous/organic boundary. At longer reaction times deactivation was apparent. It correlated with increasing voltage and is ascribed to lower equilibrium concentration of reactive species at the interface. External control over reaction rate was demonstrated by switching the applied electric potential over the course of the reaction. Effects of external electric field on enantioselectivity were also explored with reversal field direction. The changes correlate with catalyst decomposition.

Peer review status:UNDER REVIEW

11 Jun 2020Submitted to AIChE Journal
12 Jun 2020Submission Checks Completed
12 Jun 2020Assigned to Editor
15 Jun 2020Reviewer(s) Assigned
13 Jul 2020Editorial Decision: Revise Minor
04 Aug 20201st Revision Received
10 Aug 2020Submission Checks Completed
10 Aug 2020Assigned to Editor
13 Aug 2020Reviewer(s) Assigned