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Synthesis of New C2-Symmetric Chiral Benzimidazole Derivatives Having Norbornene/Dibenzobarrelene Skeletons

[ Vol. 17 , Issue. 10 ]


İrfan Çapan and Süleyman Servi*   Pages 801 - 805 ( 5 )


Racemic dicarboxylic acids were synthesized from the Diels-Alder cycloaddition reactions which formed the dibenzobarrelene and norbornene skeletons. The pure enantiomers of these compounds were obtained using brucine as the chiral auxiliary. Novel C2-symmetric chiral benzimidazole derivatives were synthesized from the reaction of the diaminobenzene and enantiomeric dicarboxylic acids in the presence of boric acid.


Norbornene, dibenzobarrelene, guanidine, benzimidazole, chiral resolution.


Department of Polymer Technology, Technical Sciences Vocational College, Gazi University, Ankara, Department of Chemistry, Faculty of Science, Firat University, Elazıg

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