Premium
Phosphol‐3‐ene 1‐oxides and ‐sulfides. A systematic investigation via carbon‐13 nuclear magnetic resonance spectroscopy
Author(s) -
Buchanan G. W.,
Webb V. L.
Publication year - 1983
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/omr.1270210708
Subject(s) - substituent , electronegativity , chemistry , chemical shift , covalent bond , ene reaction , nuclear magnetic resonance spectroscopy , resonance (particle physics) , carbon fibers , spectroscopy , computational chemistry , crystallography , stereochemistry , organic chemistry , materials science , atomic physics , physics , quantum mechanics , composite number , composite material
13 C NMR chemical shifts and 13 C 31 P couplings are reported for 18 phosphol‐3‐ene 1‐oxides and 18 corresponding sulfides. The effects of methyl substitution at positions 3 and 4 on the carbon shifts have been systematically explored and substituent parameters derived. One bond couplings from phosphorus to C‐2 and C‐5 have been related to the sum of the exocyclic substituent group electronegativities (covalent boundary potential values).