Synthesis of Quinolines via Rh(III)-Catalyzed Oxidative Annulation of Pyridines
作者:Guoyong Song、Xue Gong、Xingwei Li
DOI:10.1021/jo201266u
日期:2011.9.16
Selective synthesis of quinolines has been achieved via oxidative annulation of functionalized pyridines with two alkyne molecules under Rh(III)-catalyzed cascade C–H activation of pyridines using Cu(OAc)2 as an oxidant. The selectivity of this reaction is oxidant-dependent, particularly on the anion of the oxidant.
Rhodium(iii)-catalyzed oxidative mono- and di-olefination of isonicotinamides
作者:Xiaohong Wei、Feng Wang、Guoyong Song、Zhengyin Du、Xingwei Li
DOI:10.1039/c2ob25773d
日期:——
[RhCp*Cl2]2 can catalyze the oxidative coupling of secondary isonicotinamides with activated olefins using Cu(OAc)2 as an oxidant. The selectivity can be controlled by the solvent. In MeCN, the mono-olefination and two-fold oxidation reaction is the major pathway, while in THF this reaction gave mostly diolefination products. In both cases, the coupled products contain an exocyclic CC bond.
Aminocarbonylation of N-Containing Heterocycles with Aromatic Amines Using Mo(CO)6
作者:Sandrine Piguel、Marius Mamone、Jessy Aziz、Julie Le Bescont
DOI:10.1055/s-0037-1609152
日期:2018.4
aminocarbonylation of nitrogen-containing heterocycles with anilinederivatives using molybdenum hexacarbonyl as a CO solid source, expanding the scope of the limited examples. This method is compatible with a variety of substitutions on the aniline moiety. The simple reaction conditions include easily available Pd(dppf)Cl2 catalyst, DBU as base in DMF at 120 °C for 3 hours in sealed tube thereby leading to the isolation
Activation of carboxylic acids by Burgess reagent: an efficient route to acyl ureas and amides
作者:Derek Wodka、Michael Robbins、Ping Lan、Rogelio L. Martinez、John Athanasopoulos、Gergely M. Makara
DOI:10.1016/j.tetlet.2006.01.015
日期:2006.3
Carboxylic acids upon treatment with Burgess reagent are converted to novel mixed sulfocarboxy anhydrides. Subsequent treatment of such mixed anhydrides with amines at elevated temperatures yields acyl ureas and amides. The ratio of the two products appears to be temperature controlled. The method provides a simple and convenient route to diverse acyl ureas starting from carboxylic acids and amines
[EN] AZOLE DERIVATIVES AS WTN PATHWAY INHIBITORS<br/>[FR] DÉRIVÉS D'AZOLE EN TANT QU'INHIBITEURS DE LA VOIE WNT
申请人:OSLO UNIVERSITY HOSPITAL HF
公开号:WO2010139966A1
公开(公告)日:2010-12-09
The present invention relates to new compounds of formula I, to processes for their preparation, to pharmaceutical formulations containing such compounds and to their use in therapy. Such compounds find particular use in the treatment and/or prevention of conditions or diseases which are affected by over-activation of signaling in the Wnt pathway. For example, these may be used in preventing and/or retarding proliferation of tumor cells, for example carcinomas such as colon carcinomas.