✍ Scribed by M. Sakhawat Hussain; A. R. Al-Arfaj; Ahmed Mazzah
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
## Abstract Natural abundance ^17^O NMR data for fifteen 2‐ and 4‐substituted phenols, ten 3‐and 5‐substituted 2‐hydroxybenzaldehydes and eight 3‐substituted benzaldehydes, recorded at 75°C in acetonitrile are reported. The chemical shift change due to intramolecular hydrogen bonding for the phenol
Measurements were made in CCI, of the formation constant K,, of the 1 : l hydrogen-bonded complexes between the reference donor 4-fluorophenol and the intramolecular hydrogen-bonded systems I (one lone pair on heteroatom Y, one intramolecular hydrogen bond: 8-hydroxyquinaldine and 2-(2-hydroxyphenyl
## Abstract The conformation of 1‐phenyl‐1‐(1,2‐dimethyl‐5‐pyrrolyl)‐2‐(2‐methyl‐5‐benzoyl‐1‐pyrroly)ethanol, with characteristics of a molecular propeller, is stabilized by intramolecular hydrogen bonding as detected by ^1^H NMR, NOE difference experiments, 2D NMR, COSY, ^13^C NMR, HETCOR, HMBC an
The intramolecular hydrogen bonding (chelation) of salicylaldehyde, methyl salicylate, N , Ndimethylsalicylamide and 2-hydroxyacetophenone was studied by IR spectroscopy in different phases used for partition coefficient determinations. The extent of chelation was found to be highly sensitive to the