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Regioselectivity studies by selective detection of long‐range heteronuclear couplings from the SDEPT‐1D method
Author(s) -
Parella Teodor,
SánchezFerrando Francisco,
Virgili Albert
Publication year - 1994
Publication title -
magnetic resonance in chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.483
H-Index - 72
eISSN - 1097-458X
pISSN - 0749-1581
DOI - 10.1002/mrc.1260320606
Subject(s) - chemistry , heteronuclear molecule , regioselectivity , pulse sequence , nucleophile , palladium , formalism (music) , dept , spectrometer , nuclear magnetic resonance spectroscopy , computational chemistry , combinatorial chemistry , stereochemistry , organic chemistry , nuclear magnetic resonance , catalysis , art , musical , physics , quantum mechanics , visual arts
Abstract Some regiosomers formed by palladium(0)‐catalysed allylation of several ambident heterocyclic nucleophiles, among others, were easily distinguished in very short spectrometer times by selective polarization transfer via DEPT from well resolved protons to long‐range coupled carbons using the SDEPT‐1D experiment. This pulse sequence was also analysed in terms of the product operator formalism. These structural elucidations can provide useful information about the regioselectivity in these reactions.