Facile synthesis and spectral characterization of 2, 5-bis (cyclohexylamino)-1, 4-benzoquinone polymorphs from methyl and ethyl protocatechuic aldehydes

作者：Asha A; Mohan A Sheena; Suma S^*; Sudarsanakumar M R; Kurup M R Prathapachandra

来源：Journal of Molecular Structure, 2017, 1141: 299-308.

DOI：10.1016/j.molstruc.2017.03.106

• Methyl & ethyl protocatechuic aldehyde
• Polymorphs
• Aminobenzoquinone
• Single crystal X-ray diffraction

Two polymorphs of 2,5-bis(cyclohexylamino)-1,4-benzoquinone (BCBQI&BCBQII) are synthesized by an efficient alternate method which includes the oxidation of an aromatic aldehyde to benzoquinone moiety followed by its nucleophilic substitution in a single pot. The synthesized polymorphs have been characterized and distinguished by spectral and single crystal X-ray diffraction methods. A possible mechanism for the conversion is also suggested.

• 出版日期2017-8-5