✍ Scribed by Prof. Dr. W. Lüttke; Dipl.-Chem. A. de Meijere
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
In aqueous solutions, 13C-and 'H-nmr studies show that the percentage of trans conformation of proline oligomers +H\*N Pro-(Pro),-CO; increases substantially from n = 1 (65% trans) t o n = 2 (90% trans). The relatively low percentage of trans structure for the dimer ( n = 1) very likely is caused by
The assignments of the proton and carbon signals and conformations of substituted 2-aryl-trans-decahydroquinolin-4-ones were determined using a combination of 'H, "C, COSY and HETCOR spectral data. Analysis of the spectral data reveals that these compounds exist predominantly in twin-chair conformat
## Abstract The configuration of trans, trans‐1,2‐dimethyl and of trans, cis‐1, 2‐dimethylethylene‐sulfite, as suggested by NMR, is in agreement with electrondiffraction results in the gas phase. The best fit to the observed diffraction intensities was obtained with a non‐planar sulfite ring, ϕ~max