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( {mathcal{R}^4} )counterterm andE7(7)symmetry in maximal supergravity

✍ Scribed by Johannes Brödel; Lance J. Dixon

Publisher
Springer-Verlag
Year
2010
Tongue
English
Weight
842 KB
Volume
2010
Category
Article
ISSN
1126-6708

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Stereoselectivity in Reactions of Metal
Stereoselectivity in Reactions of Metal Complexes IV. Asymmetric Synthesis of (2R, 7S, 10R)- and (2R, 7R, 10R)-2, 10-diamino-5, 5, 7-trimethyl-4, 8-diazaundecanenickel (II) by Stereoselective Hydrogenation of (2R, 10R)-2, 10-diamino-5, 5, 7-trimethyl-4, 8-diaza-7-undecenenickel(II)
✍ Bruno Güntert; Saturnin Claude; Klaus Bernauer 📂 Article 📅 1975 🏛 John Wiley and Sons 🌐 German ⚖ 852 KB

## Abstract The catalytic hydrogenation of (2__R__, 10__R__)‐2, 10‐diamino‐5, 5, 7‐trimethyl‐4, 8‐diaza‐7‐undecenenickel(II) yields two products when the reaction is performed in the presence of ethylenediamine, but only one, when ethylenediamine is absent. The stereochemistry of the reaction is di