Здравствуйте, уважаемые химики!
Просьба помочь скачать 3 статьи:
1. R. W. Feenstra, E. H. M. Stokkingreef, R. J. F. Nivard and H. C. J. Ottenheijm "Interconversion of (R) and (S)-α-hydroxy esters: precursors of (S) and (R)-o-benzyl-α-hydroxylamino acid esters of high optical purity" / Tetrahedron, Volume 44, Issue 17, 1988, Pages 5583-5595
- DOI:
http://dx.doi.org/10.1016/S0040-4020(01)86063-4
2. Gyula Wittmann, György Göndös, Mihály Bartók "Homogeneous and heterogeneous asymmetric reactions. Part 5†. Diastereoselective and enantioselective hydrogenation of cyclic β-keto esters on modified Raney-nickel catalysts" / Helvetica Chimica Acta, Volume 73, Issue 3, pages 635–639, 2 May 1990
- DOI:
http://dx.doi.org/10.1002/hlca.19900730312
3. Masanobu Yotagai and Takashi Ohnuki "Asymmetric reduction of functionalized ketones with a sodium borohydride–(L)-tartaric acid system" / J. Chem. Soc., Perkin Trans. 1, 1990, 1826-1828
- DOI:
http://dx.doi.org/10.1039/P19900001826
Спасибо!
