Abstract

The nucleophilic 1,2-addition of organocerium compounds to SAMP-hydrazones of dialdehydes 1 is the key step for the stereoselective synthesis of N-propionyl-protected, C2-symmetric diamines 2. Because the nucleophiles and dialdehydes can be varied, this method offers a flexible, highly diastereo- and enantioselective synthetic pathway to this important class of compounds.

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