Solventless Organic Reactive Crystallization at Mild Conditions

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.

来源: Solventless Organic Reactive Crystallization at Mild Conditions

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