Open AccessCyclobutadienyl dications as intermediates in the rapid degenerate rearrangements of 4‐halo‐1,2,3,4‐tetrasubstituted cyclobutenyl cations
Author(s) -
van der HoutLodder A. E.,
de Haan J. W.,
Buck H. M.
Publication year - 1974
Publication title -
recueil des travaux chimiques des pays‐bas
Language(s) - English
Resource type - Journals
ISSN - 0165-0513
DOI - 10.1002/recl.19740930604
Subject(s) - halo , chemistry , degenerate energy levels , computational chemistry , medicinal chemistry , stereochemistry , physics , astrophysics , quantum mechanics , galaxy
Based on 13 C NMR chemical shifts at variable temperatures it is suggested that cyclobutadienyl dications form essential intermediates in the rapid equilibration of 4‐halo‐1,2,3,4‐tetrasubstituted cyclobutenyl cations.
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