Catalytic Transamidation Reactions Compatible with Tertiary Amide Metathesis under Ambient Conditions
作者:Nickeisha A. Stephenson、Jiang Zhu、Samuel H. Gellman、Shannon S. Stahl
DOI:10.1021/ja8094262
日期:2009.7.29
present study reveals that simple zirconium- and hafnium-amido complexes are highly efficient catalysts for equilibrium-controlled transamidation reactions between secondary amines and tertiary amides. In a number of cases, transamidation proceeds rapidly at room temperature. We find that these new catalysts are sufficiently active to promote the metathesis of tertiary amides, which arises from successive
Formation of Tertiary Amides and Dihydrogen by Dehydrogenative Coupling of Primary Alcohols with Secondary Amines Catalyzed by Ruthenium Bipyridine-Based Pincer Complexes
Dehydrogenativecoupling of primary alcohols with secondaryamines to form tertiary amides and dihydrogen (H2) is efficiently catalyzed by bipyridyl‐based ruthenium pincer complexes (0.2–1 mol%) under neutral conditions (in case of the dearomatized complexes), or with added catalytic amount of base. The reaction is sensitive to steric hindrance; in the case of amidation of bulky secondaryamines a
The present invention relates to compounds of structural formula I: I useful as potassium channel inhibitors to treat cardiac arrhythmias, and the like.
Provided herein are pharmaceutical agents useful for therapy and/or prophylaxis in a mammal, pharmaceutical composition comprising such compounds, and their use as menin/MLL protein/protein interaction inhibitors, useful for treating diseases such as cancer, including but not limited to leukemia, myelodysplastic syndrome (MDS), and myeloproliferative neoplasms (MPN); and diabetes.