Affiliation:
1. Department of Chemical Sciences Indian Institute of Science Education and Research Berhampur Transit Campus, Govt. ITI Building, NH 59, Engineering School Road, Ganjam-District 760 010 Berhampur Odisha India
Abstract
AbstractSynthesis of highly functionalized spiro[4.4]nonane and spiro[4.5]decane motifs by the reaction of dimethylacetylenedicarboxylate (DMAD) with 2‐(2′‐ketoalkyl)‐1,3‐indandiones and 2‐(3′‐ketoalkyl)‐1,3‐indandiones, respectively, has been developed by utilizing a catalytic amount of DABCO. The tertiary hydroxy‐containing spiro[4.4]nonane products were converted into fully conjugated pentafulvene π‐systems in an acidic medium through dehydration and unprecedented C−C bond rearrangement.
Subject
General Chemistry,Catalysis,Organic Chemistry