+++3 статьи Tetrahedron

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Помогите еще с тремя статьями, пожалуйста!

1.PPL-catalyzed resolution of 1,2- and 1,3-diols in methyl propionate as solvent. An application of the tandem use of enzymes.
A.J.M. Janssen,Aj.h. Klunder,B. Zwanenburg
Tetrahedron 1991, Volume 47, Issue 35, p. 7409–7416

DOI:

http://dx.doi.org/10.1016/S0040-4020(01)89742-8

2.Chiral binuclear copper(II) catalyzed nitroaldol reaction: scope and mechanism
Suribabu Jammi,Prasenjit Saha,Sridhar Sanyashi, Sekarpandi Sakthivel
Tetrahedron 2008, Volume 64, Issue 51, p. 11724–11731

DOI:

http://dx.doi.org/10.1016/j.tet.2008.10.009

3.Mixed La–Li heterobimetallic complexes for tertiary nitroaldol resolution
Keiichi Hara,Shin-ya Tosaki,Vijay Gnanadesikan, Hiroyuki Morimoto
Tetrahedron 2009,Volume 65, Issue 26, p. 5030–5036

DOI:

http://dx.doi.org/10.1016/j.tet.2009.02.031

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