Heterocyclic Compounds
ChemInform Abstract: Regioselectivity of Nitrilimines 1,3-Dipolar Cycloaddition: Novel Synthesis of Spiro[4,4]nona-2,8-dien-6-one Derivatives.
First published: 27 June 2011
Abstract
1,3-Dipolar cycloaddition of nitrilimines generated in situ from corresponding hydrazonoyl halides such as (II) with 4-arylideneimidazolones (I) affords the title spiro-compounds (III) (13 examples) in high yields.
