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The Molecular and Crystal Structure of 1 Ref, 3trans‐bis(4‐chloro‐phenyl)‐2trans‐nitro‐5‐oxoperhydropyrazolo[1,2‐a] pyrazol, a “non‐cisoid” 1,3‐Dipol Adduct
Author(s) -
Kutschabsky L.,
Dorn H.
Publication year - 1979
Publication title -
kristall und technik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0023-4753
DOI - 10.1002/crat.19790140911
Subject(s) - adduct , nitro , chemistry , crystal structure , cycloaddition , stereochemistry , crystallography , product (mathematics) , catalysis , mathematics , geometry , organic chemistry , alkyl
The three‐dimensional structure of the title compound has been established by means of an X‐ray analysis. The product was formed by a thermal 1,3‐dipolar cycloaddition. According to the concerted [ π 4 s + π 2 s ]‐mechanism the formation of this stereoisomer should actually be forbidden. The structure determined by X‐ray analysis confirms the chemical results.