Conformational analysis of 2-(diphenylph
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Mario Ordóñez; Eusebio Juaristi
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Article
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1998
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Elsevier Science
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French
⚖ 365 KB
The conformational preference of the diphenylphosphinoyl group at the alpha position in the thiane ring was estimated by low temperature NMR, AG~raK = + 0.46 + 0.11 kcal/mol, and at 50°C, via chemical equilibration 0 of anancomeric models, AGa2aK = -0.26 +\_ 0.10 kcal/mol. These thermodynamic data a