Multivariate analysis of inline benchtop NMR data enables rapid optimization of a complex nitration in flow
Literature Information
Johannes Poms
Inline benchtop NMR analysis is established as a powerful tool for reaction monitoring, but its capabilities are somewhat limited by low spectral resolution, often leading to overlapping peaks and difficulties in quantification. Using a multivariate analysis (MVA) statistical approach to data processing these hurdles can be overcome, enabling accurate quantification of complex product mixtures. By employing rapid data acquisition (2.0 s recording time per spectrum), we demonstrate the use of inline benchtop NMR to guide the optimization of a complex nitration reaction in flow. Accurate quantification of four overlapping species was possible, enabling generation of a robust DoE model along with accurate evaluation of dynamic experiments.
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Reaction Chemistry & Engineering

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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