## Abstract A simple method for the correction of free energy differences, Δ__G__°~exp~, obtained via the equilibriation of 2‐substituted 5‐__tert__‐butyl‐1,3‐dithianes, is proposed on the basis of the ^1^H NMR data for diastereoisomers. It suggests, in contrast to the opinion of other workers, tha
Conformational analysis of 2,3-disubstituted 1,4-dithianes by NMR spectroscopy and MMX calculations
✍ Scribed by Yury A Strelenko; Vyacheslav V Samoshin; Emmanuil I Troyansky; Dmitry V Demchuk; Dmitry E Dmitriev; Gennady I Nikishin; Nikolay S Zefirov
- Publisher
- Elsevier Science
- Year
- 1994
- Tongue
- French
- Weight
- 501 KB
- Volume
- 50
- Category
- Article
- ISSN
- 0040-4020
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## Abstract Conformational studies of 1,3‐dihydroxy‐4,4,5,5‐tetramethyl‐2‐(pyridin‐1‐yl)imidazolidine (**1a**) and 1,3‐dihydroxy‐4,4,5,5‐tetramethyl‐2‐(pyridin‐3‐yl)imidazolidine (**1b**), carried out by using 1D ^1^H‐ and ^13^C‐NMR and 2D HMQC, HMBC, and NOESY experiments and with the aid of theor
This work describes the conformational analysis of alcohols 2a,4a-dimethyl-6,7-exo-isopropylidenedioxy-8-oxabicyclo[3.2.1]octan-3a-ol ( 5) and -3b-ol (6) and of alcohols 1,2a,4a,5-tetramethyl-6,7-exo-isopropylidenedioxy-8-oxabicyclo[3.2.1]octan-3a-ol (7) and -3b-ol (8). Based on NMR data and AM1, HF