title: NMR-studies of triiodothyropropionic acid in ethanol-HCl.
abstract: The barrier to rotation in the N-acetyl methyl ester of the thyroxine was found to be 8.6 kcal mol-1. Previous experiments determining the barrier to rotation in triiodothyropropionic acid in HCl-ethanol were shown to be in error.
mesh_terms: D000431:Ethanol; D006851:Hydrochloric Acid; D009682:Magnetic Resonance Spectroscopy; D008968:Molecular Conformation; D009904:Optical Rotation; D011422:Propionates; D014284:Triiodothyronine
chemical_list: D011422:Propionates; D014284:Triiodothyronine; D000431:Ethanol; D006851:Hydrochloric Acid