Transformation of cyclohexanone derivatives to bicyclic furan and pyrrole derivatives


Thesis Type: Postgraduate

Institution Of The Thesis: Middle East Technical University, Faculty of Arts and Sciences, Department of Chemistry, Turkey

Approval Date: 2004

Thesis Language: English

Student: Emre Yusuf Yazıcıoğlu

Supervisor: CİHANGİR TANYELİ

Abstract:

Tetrahydrobenzofurans and tetrahydroindoles are two very valuable classes of substances which have wide usage area; either as starting materials for drug substances or many other compounds which have fused heterocyclic rings in their structures and pharmacophore for many complex natural products; syntheses of derivatives of these compounds with different substitution patterns, is an exciting challenge for many scientists. Benzofuran and tetrahydroindole derivatives, which are potent bioactive substances, are synthesized from various cyclohexanone derivatives that are allylated by Stork-enamine or Mn(OAc)3 mediated allylation methods. Allylated ketones are later transformed to benzofuran derivatives upon treatment with base or tetrahydroindole derivatives upon treatment with primary amines.