Catalytic Kinetic Resolution of Cyclic Secondary Amines
作者:Michael Binanzer、Sheng-Ying Hsieh、Jeffrey W. Bode
DOI:10.1021/ja209472h
日期:2011.12.14
The catalytic resolution of racemic cyclic amines has been achieved by an enantioselective amidation reaction featuring an achiral N-heterocyclic carbene catalyst and a new chiral hydroxamic acid cocatalyst working in concert. The reactions proceed at room temperature, do not generate nonvolatile byproducts, and provide enantioenriched amines by aqueous extraction.
A Robust, Recyclable Resin for Decagram Scale Resolution of (<i>±</i>
)-Mefloquine and Other Chiral N-Heterocycles
作者:Imants Kreituss、Kuang-Yen Chen、Simon H. Eitel、Jean-Michel Adam、Georg Wuitschik、Alec Fettes、Jeffrey W. Bode
DOI:10.1002/anie.201509256
日期:2016.1.22
have been produced via kinetic resolution of racemic mefloquine using a ROMP‐gel supported chiral acyl hydroxamic acid resolving agent. The requisite monomer was prepared in a few synthetic steps without chromatography and polymerization was safely performed on a >30 gram scale under ambient conditions. The reagent was readily regenerated and reused multiple times for the resolution of 150 grams of (±)‐mefloquine