Department of Process Research, Merck Research Laboratories, Merck & Co., Inc., Rahway, New Jersey 07065, USA.
Org Lett. 2010 Jan 15;12(2):276-9. doi: 10.1021/ol902602c.
An enantioselective hydrogenation of hydrazones catalyzed by Rh complexes (Rh-Josiphos or Rh-Taniaphos) has been developed. The protocol can be applied to hydrazones with three different protective groups (Boc, Cbz, and methoxycarbonyl), allowing for selective deprotection and further elaboration of the hydrazine products in the presence of other functional groups.
手性铑配合物(Rh-Josiphos 或 Rh-Taniaphos)催化的腙的对映选择性氢化已被开发出来。该方案可应用于具有三种不同保护基(Boc、Cbz 和甲氧羰基)的腙,允许在存在其他官能团的情况下选择性脱保护和进一步修饰腙产物。