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The Use of 15 N NMR Spectroscopy To Resolve the “Higher Order Cyanocuprate” Controversy: 15 N, 6 Li, and 13 C NMR Spectroscopic Investigations of CuCN‐Derived Butyl Cuprates
Author(s) -
Bertz Steven H.,
Nilsson Karolina,
Davidsson Öjvind,
Snyder James P.
Publication year - 1998
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/(sici)1521-3773(19980216)37:3<314::aid-anie314>3.0.co;2-t
Subject(s) - nuclear magnetic resonance spectroscopy , cuprate , spectroscopy , fluorine 19 nmr , transverse relaxation optimized spectroscopy , chemistry , order (exchange) , carbon 13 nmr satellite , materials science , physics , condensed matter physics , superconductivity , stereochemistry , quantum mechanics , finance , economics
Structure 1 is the major component obtained by the reaction of two equivalents of RLi and one equivalent of CuCN; other proposed structures can now be ruled out on the basis of 15 N NMR spectroscopic and theoretical studies. Thus, these useful synthetic reagents should be considered as cyano‐Gilman reagents R 2 CuLi⋅LiCN and not “higher order cyanocuprates” R 2 Cu(CN)Li 2 .