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Jones, Raymond C.F.; Hollis, Stephen J. and Iley, James N.
(2007).
DOI: https://doi.org/10.3998/ark.5550190.0008.513
URL: http://www.arkat-usa.org/get-file/18836/
Abstract
Dipolar cycloadditions of azomethine imines, formed in situ from aldehydes and N1-alkyl-N2-acylhydrazines, with electron-deficient dipolarophiles produce pyrazolidines: mono-substituted dipolarophiles afford principally 4-substituted pyrazolidines.