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Long range phenomena—XIV: 1 H‐{ 1 H} indor spectra and relative signs of coupling constants of some oxirane derivatives with adjacent methylene groups
Author(s) -
Anteunis M.,
Borremans F.,
Van Den Bossche R.,
Verhegge G.
Publication year - 1972
Publication title -
organic magnetic resonance
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.483
H-Index - 72
eISSN - 1097-458X
pISSN - 0030-4921
DOI - 10.1002/mrc.1270040408
Subject(s) - methylene , epoxide , coupling constant , contradiction , spectral line , chemistry , coupling (piping) , oxide , range (aeronautics) , computational chemistry , stereochemistry , medicinal chemistry , materials science , physics , organic chemistry , quantum mechanics , philosophy , epistemology , composite material , catalysis , metallurgy
PMR parameters of some methylene substituted oxiranes are obtained from INDOR experiments on the ABXMN spin systems. Compounds investigated include safrol‐ and bromosafrol epoxide and β‐phenoxypropylene oxide. For the latter compound all the relative signs (except for some long range couplings) were obtained and certain of these are in contradiction with those reported 2 in β‐chloropropylene oxide. ‘Non‐classical’ long range couplingis also noted and differs in pathway from that reported previously. 2 .