A Simple Route to Novel Palladium(II) Catalysts with Oxazolin-2-ylidene Ligands
摘要:
Novel palladium(II) complexes with oxazolin-2-ylidene ligands have been synthesized via direct reaction of palladium acetate and oxazolium salts, prepared in turn by alkylation of oxazole with methyl iodide or benzylic bromides. The resulting complexes have been characterized and used as catalysts in Heck coupling reactions of aryl bromides, where they exhibit remarkable catalytic activity, higher than that of the closely related bis-imidazolin-2-ylidene and bis-benzothiazolin-2-ylidene complexes.
Method for treating fibrotic diseases or other indications ID
申请人:——
公开号:US20020177586A1
公开(公告)日:2002-11-28
Provided, among other things, is a method of treating or ameliorating or preventing an indication of the invention in an animal, including a human comprising administering an effective amount of a compound of the formula I:
1
提供了一种在动物中(包括人类)治疗、改善或预防本发明指示的方法,其中包括给予化合物I的有效量:1。
Method for treating fibrotic diseases and other indications
申请人:Alteon, Inc.
公开号:US07166625B2
公开(公告)日:2007-01-23
Provided, among other things, is a method of treating or ameliorating or preventing an indication of the invention in an animal, including a human comprising administering an effective amount of a compound of the formula I:
提供的是一种治疗、改善或预防本发明所示症状的动物,包括人类的方法,其中包括给予化合物I的有效剂量。
US7166625B2
申请人:——
公开号:US7166625B2
公开(公告)日:2007-01-23
Oxazolium Salts as Organocatalysts for the Umpolung of Aldehydes
作者:Venkata Krishna Rao Garapati、Michel Gravel
DOI:10.1021/acs.orglett.8b02636
日期:2018.10.19
and redox esterification reactions. An N-mesityl oxazolium salt catalyzed homobenzoin reaction of aromatic, heteroaromatic, and aliphatic aldehydes delivered α-hydroxy ketones in high yields. This newtype of catalyst proved remarkably effective for the Stetter reaction of challenging substrates such as β-alkyl-α,β-unsaturated ketones and electron-rich aromaticaldehydes in comparison to common thiazolium