[EN] 2(1H)-PYRIDONE DERIVATIVES, PREPARATION THEREOF AND COMPOSITION CONTAINING THEM
申请人:SANDOZ AG
公开号:WO1983004024A1
公开(公告)日:1983-11-24
(EN) The compounds having the formula I wherein the substituents may have different meanings, in a free form or as salts, have a cardiotonic activity. They may be used as drugs. They are obtained by cyclisation or amination.(FR) Les composés de formule I, dans laquelle les substituants possèdent différentes significations, sous forme libre ou sous forme de sels possèdent une activité cardiotonique. Ils peuvent être utilisés comme médicaments. On les obtient par cyclisation ou amination.
Palladium-Catalyzed Mono-α-arylation of Acetone with Aryl Halides and Tosylates
作者:Kevin D. Hesp、Rylan J. Lundgren、Mark Stradiotto
DOI:10.1021/ja200009c
日期:2011.4.13
selective Pd-catalyzed mono-α-arylation of acetone employing aryl chlorides, bromides, iodides, and tosylates. The use of appropriately designed P,N-ligands proved to be the key to controlling the reactivity and selectivity. The reaction affords good yields with substrates containing a range of functional groups at modest Pd loadings using Cs(2)CO(3) as the base and employing acetone as both a reagent and