cheminform abstract: a diastereo- and enantioselective synthesis of α-substituted syn-α,β-diamino...

2008 Aminocarboxylic acids (hydrazinocarboxylic acids) and esters Q 0440 A Diastereo- and Enantioselective Synthesis of α-Substituted syn-α,β-Diamino Acids. — The key function in the reaction of substituted α-nitroesters and azomethines is the methoxy substitution in the catalyst. The nitro-functionality is easily reduced and further saponified to yield a free diamine [cf. (V)]. — (SINGH, A.; JOHNSTON*, J. N.; J. Am. Chem. Soc. 130 (2008) 18, 5866-5867; Dep. Chem., Vanderbilt Univ., Nashville, TN 37235, USA; Eng.) — Y. Steudel 39- 072

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Page 1: ChemInform Abstract: A Diastereo- and Enantioselective Synthesis of α-Substituted syn-α,β-Diamino Acids

2008

200839.fm Seite 74 Dienstag, 26. August 2008 11:58 11

Aminocarboxylic acids (hydrazinocarboxylic acids) and estersQ 0440 A Diastereo- and Enantioselective Synthesis of α-Substituted syn-α ,β-Diamino

Acids. — The key function in the reaction of substituted α-nitroesters and azomethines is the methoxy substitution in the catalyst. The nitro-functionality is easily reduced and further saponified to yield a free diamine [cf. (V)]. — (SINGH, A.; JOHNSTON*, J. N.; J. Am. Chem. Soc. 130 (2008) 18, 5866-5867; Dep. Chem., Vanderbilt Univ., Nashville, TN 37235, USA; Eng.) — Y. Steudel

39- 072

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C.A.O DIAMINO .pdf

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α) αα α η ζη $α δδαζ & α η & η # Γ αζ # α δ - sch.grdide.ark.sch.gr/portal/sites/all/anatheseis/1.pdf · 2011-10-20 · 2 α) αα α η ζη $α δδαζ & α