Nickel-Catalyzed Dehydrogenative Cross-Coupling: Direct Transformation of Aldehydes into Esters and Amides
作者:Aaron M. Whittaker、Vy M. Dong
DOI:10.1002/anie.201410322
日期:2015.1.19
nickel‐catalyzed cross‐coupling, a method to directly transform both aromatic and aliphaticaldehydes into either esters or amides has been developed. The success of this oxidativecoupling depends on the appropriate choice of catalyst and organic oxidant, including the use of either α,α,α‐trifluoroacetophenone or excess aldehyde. Mechanistic data that supports a catalytic cycle involving oxidative addition into
通过探索镍催化交叉偶联的新模式,开发了一种将芳香族和脂肪族醛直接转化为酯或酰胺的方法。这种氧化偶联的成功取决于催化剂和有机氧化剂的适当选择,包括使用α,α,α-三氟苯乙酮或过量的醛。还提供了支持涉及醛 C - H 键氧化加成的催化循环的机理数据。
QUINUCLIDINE DERIVATIVES BINDING TO MUCARINIC M3 RECEPTORS
申请人:Collingwood Stephen Paul
公开号:US20100041887A1
公开(公告)日:2010-02-18
Compounds of formula I
in salt or zwitterionic form wherein, wherein R
1
, R
2
, R
3
, and R
4
have the meanings as indicated in the specification, are useful for treating conditions that are mediated by the muscarinic M3 receptor. Pharmaceutical compositions that contain the compounds and a process for preparing the compounds are also described.
Quinuclidine derivatives binding to mucarinic m3 receptors
申请人:Collingwood Paul Stephen
公开号:US20070060563A1
公开(公告)日:2007-03-15
Compounds of formula I
in salt or zwitterionic form wherein, wherein R
1
, R
2
, R
3
, and R
4
have the meanings as indicated in the specification, are useful for treating conditions that are mediated by the muscarinic M3 receptor. Pharmaceutical compositions that contain the compounds and a process for preparing the compounds are also described.
Substituted Imidazopyridazines as Lipid Kinase Inhibitors
申请人:Capraro Hans-Georg
公开号:US20100305113A1
公开(公告)日:2010-12-02
The invention relates to novel compounds of the formula I,
as well as other invention embodiments related to these compounds. The compounds are e.g. useful in the treatment of the animal or human body in view of their ability to inhibit protein kinases such as especially PI3 kinase.
Acceptorless dehydrogenativecoupling reactions between C–H bonds offer straightforward and atom-economical methods connecting readily available materials while liberating gaseous hydrogen as the sole byproduct. Despite the growing interest in such transformations, their realization still poses a significant challenge. Here we report a photoinduced dehydrogenativecoupling reaction of alkylamines with