Theoretical study of solvent effect on diastereoselectivity in protonation of methyl 3-fluorobutanoate anion by ethanol: Application of the 3D-RISM theory

作者: Yasuhiro Ikuta , Yutaka Maruyama , Fumio Hirata , Shuji Tomoda

DOI: 10.1016/J.THEOCHEM.2006.11.036

关键词:

摘要: The H/D exchange reaction of carbonyl compounds is one the most important reactions in synthetic organic chemistry as well biochemistry. In present study, 3D-RISM theoretical model has been used to examine high diastereoselectivity and solvent effects protonation methyl 3-fluorobutanoate anion by ethanol. analysis along IRC coordinates clearly suggested that not only molecules stabilize system throughout entire process, but also stabilization mechanism operates so minimize energy difference between two diastereofacial processes. processes ground state carries directly through transition state. This strongly should be determined essentially Confirmative evidence for this conclusion was obtained EFOE (exterior frontier orbital extension model) model.

参考文章(26)
NguyÊn Trong Anh, Regio- and stereo-selectivities in some nucleophilic reactions ChemInform. ,vol. 11, pp. 145- 162 ,(1980) , 10.1007/BFB0048506
John Perkyns, B. Montgomery Pettitt, A site-site theory for finite concentration saline solutions Journal of Chemical Physics. ,vol. 97, pp. 7656- 7666 ,(1992) , 10.1063/1.463485
Andrzej Stanislaw Cieplak, Stereochemistry of Nucleophilic Addition to Cyclohexanone. The Importance of Two-Electron Stabilizing Interactions Journal of the American Chemical Society. ,vol. 103, pp. 4540- 4552 ,(1981) , 10.1021/JA00405A041
Andriy Kovalenko, Fumio Hirata, Three-dimensional density profiles of water in contact with a solute of arbitrary shape: a RISM approach Chemical Physics Letters. ,vol. 290, pp. 237- 244 ,(1998) , 10.1016/S0009-2614(98)00471-0
Dmitrii Beglov, Benoît Roux, An Integral Equation To Describe the Solvation of Polar Molecules in Liquid Water Journal of Physical Chemistry B. ,vol. 101, pp. 7821- 7826 ,(1997) , 10.1021/JP971083H
J.S. Perkyns, B. Montgomery Pettitt, A dielectrically consistent interaction site theory for solvent—electrolyte mixtures Chemical Physics Letters. ,vol. 190, pp. 626- 630 ,(1992) , 10.1016/0009-2614(92)85201-K