Asymmetric Intramolecular [3 + 2] Cycloaddition Reactions of Acylhydrazones/Olefins Using a Chiral Zirconium Catalyst
Journal of the American Chemical Society2002Vol. 124(46), pp. 13678–13679
Citations Over TimeTop 10% of 2002 papers
Abstract
Catalytic asymmetric intramolecular [3 + 2] cycloaddition of hydrazone/olefins has been attained. In the presence of a chiral zirconium catalyst prepared from zirconium alkoxide and a BINOL derivative, the desired pyrazolidine derivatives were obtained in high yields with high selectivities. The products were easily converted to 1,3-diamine or beta-aminonitrile derivatives by N-N bond cleavage.
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