![(1R,5R)-3-{[(2-Methyl-2-propanyl)oxy]carbonyl}-3-azabicyclo[3.1.0]hexane-1-carboxylic acid structure](https://static.chemtradehub.com/structs/116/1165450-63-4-bfe1.webp "(1R,5R)-3-{[(2-Methyl-2-propanyl)oxy]carbonyl}-3-azabicyclo[3.1.0]hexane-1-carboxylic acid structure")
(1R,5R)-3-{[(2-Methyl-2-propanyl)oxy]carbonyl}-3-azabicyclo[3.1.0]hexane-1-carboxylic acid
CAS Number:
1165450-63-4
Molecular Formula:
C11H17NO4
Selective separation of amines from continuous processes using automated pH controlled extraction
Literature Information
Publication Date
2021-08-25
DOI
10.1039/D1RE00205H
Impact Factor
4.239
Authors
Luke A. Power, Adam D. Clayton, William R. Reynolds, David R. J. Hose, Caroline Ainsworth, Thomas W. Chamberlain, Bao N. Nguyen, Richard A. Bourne, Nikil Kapur, A. John Blacker
View Original
Abstract
We present a rapid continuous processing methodology to screen for the optimal, selective, liquid–liquid extraction conditions, from a typical post-reaction mixture of amines, using both inline and online analysis to systematically alter the pH, by controlling the acid addition pump. A mixture of 95% α-methyl-benzylamine, 1, and 5% N-benzyl-α-methyl-benzylamine, 2, simulated a reaction product and impurity, with the former extracted from toluene into water with 92% efficiency and 99% purity. The initial acid concentration and outlet pH (post-extraction), were compared with the amine concentration in each phase. The incorporation of inline, pH and HPLC, monitoring of both the aqueous and organic phases, allowed for detailed analysis of the applied extraction conditions. This produced an autonomous system for exploring the amine extraction conditions: optimal amount of acid and organic-aqueous phase ratio.
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Source Journal
Reaction Chemistry & Engineering
CiteScore:
0
Self-citation Rate:
8.8%
Articles per Year:
284
Reaction Chemistry & Engineering is an interdisciplinary journal reporting cutting-edge research focused on enhancing the understanding and efficiency of reactions. Reaction engineering leverages the interface where fundamental molecular chemistry meets chemical engineering and technology. Challenges in chemistry can be overcome by the application of new technologies, while engineers may find improved solutions for process development from the latest developments in reaction chemistry. Reaction Chemistry & Engineering is a unique forum for researchers whose interests span the broad areas of chemical engineering and chemical sciences to come together in solving problems of importance to wider society. All papers should be written to be approachable by readers across the engineering and chemical sciences. Papers that consider multiple scales, from the laboratory up to and including plant scale, are particularly encouraged.
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