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ChemInform Abstract: Diastereo- and Enantioselective Synthesis of Vicinal Diamines via Aza- Michael Addition to Nitroalkenes.

✍ Scribed by D. ENDERS; J. WIEDEMANN

Publisher
John Wiley and Sons
Year
2010
Weight
31 KB
Volume
28
Category
Article
ISSN
0931-7597

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✦ Synopsis

Diastereo-and Enantioselective Synthesis of Vicinal Diamines via

Aza-Michael Addition to Nitroalkenes.

-Key step in the diastereoand enantioselective synthesis of vicinal diamines is an auxiliary-controlled diastereoselective conjugate addition of a chiral ammonia equivalent (II) to nitroalkenes. During the work-up procedure of (III)/(VIII) it is necessary to avoid acidic conditions to prevent epimerization of the products. The desired diamines are isolated as their Boc-protected derivatives due to their enhanced stability. -(ENDERS, D.;

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