含铁硅钨杂多酸盐控制催化氧化环化乙酰丙酮

The diiron-substituted silicotungstate just for the catalysis of oxidative cyclization of acetylacetone

杂多酸化合物[γ-SiW10{Fe(OH2)}2O38]6-(简写为{Fe2SiW10})在催化乙酰丙酮合成呋喃杂化衍生化合物2,5-二甲基-2,3-二羟基-3,4-二乙酰基-2,3-二氢呋喃(Ⅵ)时,同时起到了氧化催化剂和环化催化剂的作用.详细的实验研究结果表明,之所以可以由乙酰丙酮成功合成化合物Ⅵ,是由于乙酰丙酮所有基团的协同作用以及催化剂{Fe2SiW10}的功能性.底物结构的稍许修饰将较大影响所得产物的结构.

Heteropolyoxometalate [y-SiWl0 { Fe（OH2 ） } 2O38]^6- （abbreviated as { Fe2 SiWl0 } ） performed both as oxi- dation and cyclization catalyst can smartly prompt acetylacetone to the formation of an interesting furan derivative （2,5-dimethyl-2,3-dihydroxy-3,4-diacetly-2,3-dihydrofuran） （Ⅵ）. Detailed experiments showed that the transfor- mation process should be the cooperation of the every functional groups of acetylacetone with the multirole { Fez SiWl0 } catalyst, and slight structural modification will dramatically affect the final products.