Organic solvent breakthrough enables water-free nitrile production

National Taiwan University researchers developed a redox reservoir that converts benzylamine to benzonitrile without water, potentially reducing water dependency in key chemical manufacturing.

National Taiwan University researchers published a study in *Angewandte Chemie International Edition* on August 13, 2026, describing a nickel-based redox reservoir (NiOOH/Ni(OH)₂) that enables spontaneous benzylamine to benzonitrile conversion in organic solvents. The system achieves high yield and selectivity using hexane as solvent, maintaining performance at benzylamine concentrations exceeding 100 mM without hydrolysis issues. Crucially, it eliminates aqueous electrolytes that typically degrade nitrile products through hydrolysis. This approach demonstrates potential for benzylamine derivatives with varied functional groups, though the study focuses specifically on this chemical class.

The method addresses a key bottleneck in producing nitrile-derived plastics, pharmaceuticals, and agrochemicals by avoiding water-intensive processes. By removing water dependency from the reaction pathway, it could reduce resource strain on freshwater systems while improving reaction efficiency. However, the 100 mM concentration threshold represents the minimum for stable performance, and broader applicability to other chemical classes requires further validation.

This advance matters for water security in chemical manufacturing. If scaled, it could lower the environmental footprint of nitrile production without immediate cost reductions. Next steps include testing the system’s stability at lower benzylamine concentrations and expanding it to other derivative structures. The research remains in early validation stages, with real-world implementation pending further optimization.

Source: Phys.org