作者:Dmitri V. Sevenard、Olesya Kazakova、Dmitri L. Chizhov、Danil S. Yachevskii、Enno Lork、Jörn Poveleit、Valery N. Charushin、Gerd-Volker Röschenthaler
DOI:10.1002/hlca.200790043
日期:2007.2
3,5-triketones and their metal derivatives towards common halogenating agents was examined, and optimal reaction conditions for the straightforward synthesis of mono-, di-, and tetrahalogenated products were found (Schemes 1–3). An aromatization through a double HBr elimination from an α,α′-dibrominated cyclohexanone was shown to be a promising synthetic route to 1,1′-(2-hydroxy-1,3-phenylene)bis[2
研究了线性和环状氟化1,3,5-三酮及其金属衍生物对常见卤化剂的行为,并发现了直接合成单,二和四卤代产物的最佳反应条件(方案1-3))。通过从α,α'-二溴代环己酮中双HBr消除进行的芳构化显示是一种有希望的合成1,1'-(2-羟基-1,3-亚苯基)双[2,2,2-三氟乙酮的合成路线](= 2,6-双(三氟乙酰基)酚;方案4)。另外,制备的1,3,5-三酮易于添加H 2 O或醇以产生新颖的桥连的2,6-二羟基吡喃-4-酮(方案2)。所得化合物6a的结构和图7a是通过X射线结构分析所证实。