N.m.r. Spectra and Stereoisomerism in Pyrazolines

Alfred Hassner, Malvin J. Michelson

Research output: Contribution to journalArticlepeer-review

47 Scopus citations


Cis-trans isomerism in pyrazolines and the application of n.m.r. spectroscopy in differentiating between such isomers is discussed. Theoretical calculations of chemical shifts for some cis- and trans-4,5-disubstituted 2-pyrazolines are in agreement with assignments based on chemical considerations.

Original languageEnglish
Pages (from-to)3974-3976
Number of pages3
JournalJournal of Organic Chemistry
Issue number11
StatePublished - 1 Nov 1962
Externally publishedYes


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