Compounds with Bridgehead Nitrogen 51 The NMR Spectra and Stereochemistry of the 6-Ethylindolizidines
1H and 13C NMR spectroscopy showed that both isomers of 6-ethylindolizidine adopt predominantly the trans-fused conformation in CDCl3 at 298 K. for the cis ->/-1.
Banting, Lee,Crabb, Trevor A.,Trethewey, Andrew N.