Department of Chemistry, Renmin University of China, Beijing 100872, China.
Org Lett. 2009 Sep 17;11(18):4176-9. doi: 10.1021/ol901751c.
Methylene-bridged bis-1,3-dicarbonyl derivatives were synthesized efficiently by iron-catalyzed oxidative reactions of 1,3-dicarbonyl compounds and N,N-dimethylaniline. Bipyrazoles and substituted 1,4-dihydropyridine were obtained by the reactions of bis-1,3-dicarbonyl compounds with hydrazines and ammonium acetate, respectively.
亚甲基桥联双-1,3-二羰基衍生物通过铁催化氧化 1,3-二羰基化合物和 N,N-二甲基苯胺反应高效合成。双-1,3-二羰基化合物与肼和醋酸铵反应分别得到双吡唑和取代的 1,4-二氢吡啶。