Four dinuclear Ir Icomplexes with macrocyclic diamine‐tetracarbene ligands were synthesized and characterized, two of which and a related mononuclear complex were found to be the first examples of Ir N‐heterocyclic carbene complexes exhibiting catalytic performance toward 1,4‐addition of arylboronic acids to cyclohex‐1‐en‐2‐one.
合成并表征了四种具有大环二胺-四卡宾配体的双核 Ir I 配合物,其中两个和一个相关的单核配合物被发现是 Ir N-杂环卡宾配合物的第一个例子,对芳基硼酸的 1,4-加成具有催化性能到环己-1-en-2-one。
A Pd-Catalyzed one-pot dehydrogenative aromatization and ortho-functionalization sequence of N-acetyl enamides
作者:Jinhee Kim、Youngtaek Moon、Suhyun Lee、Sungwoo Hong
DOI:10.1039/c4cc00027g
日期:——
The one-pot dehydrogenation and ortho-functionalization sequence provides access to highly functionalized arylamine-containing derivatives from readily accessible cyclic N-acetyl enamides.
Rhodium-catalyzed conjugate addition of arylindium reagents to α,β-unsaturated carbonyl compounds
作者:Rubén Tato、Ricardo Riveiros、José Pérez Sestelo、Luis A. Sarandeses
DOI:10.1016/j.tet.2011.11.075
日期:2012.2
A novel rhodium-catalyzedconjugateaddition of indium reagents to electron deficient olefins is reported. The reaction takes place in THF/MeOH at 110 °C using arylindium dichlorides, a rhodium(I)-binap complex as catalyst, and α,β-unsaturated ketones and lactones in good yields (45–94%). The addition of MeOH is crucial for an efficient transformation and NMR studies seem to indicate that promotes
Process for the production of CCR2 receptor antagonists and intermediates thereof
申请人:BOEHRINGER INGELHEIM INTERNATIONAL GMBH
公开号:EP2816040A1
公开(公告)日:2014-12-24
The present invention relates to a process for the production of novel antagonists for CCR2 (CC chemokine receptor 2) of formula (I) from 6-Chloro-pyrimidine-methanone intermediates.
Formula (I):
Specifically claimed 6-chloropyrimidine-methanone intermediates are: