Abstract

Utilization of Industrial Waste Materials, 1. – Synthesis of New Primary and Secondary Chiral 1,2‐DiaminesPrimary and secundary 1,2‐diamines with three or four stereogenic centers were synthesized starting from the benzyl ester of the bicyclic proline analogue (all‐R)‐2‐azabicyclo[3.3.0]octane‐3‐carboxylic acid [(all‐R)‐2b] by a four‐ or five‐step procedure. This is an example for the utilization of the industrial waste material (all‐R)‐2b. magnified image

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