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Carbon‐13 NMR spectra of some chlorinated polycyclodiene pesticides
Author(s) -
Cox Richard H.,
McKinney James D.
Publication year - 1978
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.1270111103
Subject(s) - heptachlor , substituent , chemistry , dieldrin , nmr spectra database , chemical shift , aldrin , spectral line , endrin , lanthanide , reagent , organic chemistry , pesticide , ion , physics , astronomy , agronomy , biology
Carbon‐13 NMR spectra have been obtained for aldrin, dieldrin, isodrin, endrin, heptachlor, heptachlor oxide and 24 of their degradation/conversion products. Chemical shifts were assigned on the basis of (1) comparison among the spectra, (2) single frequency, off‐resonance decoupling experiments, (3) substituent effects derived for norbornanes and (4) spectra obtained with an added lanthanide shift reagent. The substituent effects previously reported for norbornanes were found to be applicable for establishing trends in the chemical shifts for many of the compounds studied.