97859-02-4Relevant academic research and scientific papers
INITIAL FORMATION OF AN OLEFIN-COPPER(I) ?-COMPLEX IN CONJUGATE ADDITION OF LITHIUM DIMETHYLCUPRATE TO t-BUTYL CINNAMATE
Hallnemo, Gerd,Olsson, Thomas,Ullenius, Christina
, p. C22 - C24 (1984)
The 13C NMR spectrum observed upon mixing lithium dimethylcuprate and t-butyl cinnamate in toluene-d8/THF at -70 deg C shows the signals of the olefinic carbons shifted to lower δ values.These are attributed as due to a ?-complex formed by coordination of copper to the carbon-carbon double bond of the cinnamate.
