Solventless Organic Reactive Crystallization at Mild Conditions

Abstract

Solid state mixtures of two reactants, 2-hydroxy-1-naphthaldehyde and 2-aminobenzonitrile, were melted at a temperature even lower than both the melting points. And dehydration condensation reaction occurred in the melt to give reaction product N-(2-cyanophenyl)-2-hydroxy-1-naphthadimine. Since the melting point of the product was higher than the reactants, self-crystallization of the product occurred. Usefulness of this one-pot synthesis and crystallization method for industrial application was described.

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Yokota, M. , Doki, N. and Akagaki, H. (2015) Solventless Organic Reactive Crystallization at Mild Conditions. Advances in Chemical Engineering and Science, 5, 461-464. doi: 10.4236/aces.2015.54047.

Conflicts of Interest

The authors declare no conflicts of interest.

References

[1] Cincic, D., Brekalo, I. and Kaitner, B. (2012) Solvent-Free Polymorphism Control in a Covalent Mechanochemical Reaction. Crystal Growth & Design, 12, 44-48.
http://dx.doi.org/10.1021/cg2013705
[2] Huskic, I., Halasz, I., Friscic, T. and Vancika, H. (2012) Mechanosynthesis of Nitrosobenzenes: A Proof-of-Principle Study in Combining Solvent-Free Synthesis with Solvent-Free Separations. Green Chemistry, 14, 1597-1600.
http://dx.doi.org/10.1039/c2gc35410a
[3] Trzesowska-Kruszynska, A. (2013) Solvent-Free and Catalysis-Free Approach to the Solid State in Situ Growth of Crystalline Isoniazid Hydrazones. Crystal Growth & Design, 13, 3892-3900.
http://dx.doi.org/10.1021/cg400529s

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