Demircan, AParsons, PJ2019-08-012019-08-0120020793-0283https://hdl.handle.net/11480/5739Preparation of rigid tricyclic nitrogen heterocycles under radicalic condition has been studied. Cyclisation is performed by Diels-Alder ring closure after radicalic hydrogenation. We did not observe any radicalic Cycloaddition / Fragmentation product 12. Tri-n-butyltin hydride (TBTH) and azobisisobutyronitrile were used in toluene or benzene to generate radicalic condition. Intramolecular, Diels-Alder (IMDA) reaction on substituted furan species gave tricyclic heterocycle.eninfo:eu-repo/semantics/closedAccesstri-n-butyltin hydride (TBTH)azobisisobutyronitrile (AIBN)intramolecular Diels-Alder reaction (IMDA)cycloadditionArticle865315362-s2.0-0036978793Q3WOS:000180495000002Q4