光氧化还原和钯催化的组合已被用于促进顽固的 α-氨基和苯乙酸烯丙酯的室温脱羧烯丙基化。这个操作简单的过程产生 CO2 作为唯一的副产品,并提供直接获取烯丙基化烷烃的途径。光化学氧化后,羧酸盐发生自由基脱羧作用,以位点特异性地生成自由基中间体,然后进行烯丙基化。提出了一种自由基双催化机制。游离苯乙酸也使用类似的反应条件进行烯丙基化。
Photocatalytic Aminodecarboxylation of Carboxylic Acids
作者:Simon B. Lang、Kaitie C. Cartwright、Richard S. Welter、Theresa M. Locascio、Jon A. Tunge
DOI:10.1002/ejoc.201600620
日期:2016.7
Aminodecarboxylation of unactivated alkyl carboxylicacids has been accomplished utilizing an organic photocatalyst. This operationally simple reaction utilizes readily available carboxylicacids to chemoselectively generate reactive alkyl intermediates that are not accessible via conventional two-electron pathways. The organic radical intermediates are efficiently trapped with electrophilic diazo
ASCORBINSÄUREDERIVATE ALS OXIDATIONSFARBSTOFFKOMPONENTEN
申请人:Merck Patent GmbH
公开号:EP2640713B1
公开(公告)日:2014-08-20
[EN] BENZOIC AND PHENYL ACETIC ACID DERIVATIVES AS HNF-4 MODULATORS<br/>[FR] DERIVES D'ACIDE BENZOIQUE ET PHENYLACETIQUE UTILISES EN TANT QUE MODULATEURS DES RECEPTEURS DU FACTEUR HNF-4 DOLLAR G(A)
申请人:LIGAND PHARMACUETICALS INC
公开号:WO2005009104A2
公开(公告)日:2005-02-03
The present invention is directed to hepatocyte nuclear factor 4a (HNF-4a) receptor modulator compounds. This invention is also directed to pharmaceutical compositions containing such compounds as well as methods of using such compounds and pharmaceutical compositions for modulating HNF-4a receptors as well as processes mediated by HNF-4a receptors. Also provided are methods of making such compounds and pharmaceutical compositions, as well as intermediates used in their synthesis.