为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......

Tungstophosphoric acid (HPW) catalyst supported on the neural alumina was studied. It was prepared by means of an equili......

The catalytic activities of SO42-/TiO2-MoO3 in synthesizing cyclohexanone ethylene ketal,cyclohexanone 1,2-propanediol k......

A new environmental friendly catalyst H3PW12O40/PAn was prepared and identified by means of FT-IR,XRD,and TG/DTA.The opt......

A new, mild and efficient method for the cleavage of 1,3-dioxolane is reported....

Molecular sieves with different acidities and pore-sizes have been applied to catalyze the acetalization and ketalizatio......

采用超声波辐射法,以对甲基苯磺酸(p-TSA)和分子筛为催化剂,醇作溶剂和反应物,在室温下合成了16种芳香醛缩醛(酮).此法适用性强、......

3H-1,2-二氢-1-吡咯里嗪酮与多聚甲醛经羟醛缩合反应制得2,2-二羟甲基-1,2-二氢-1-吡咯里嗪酮,再与相应的酮(醛)缩合制得未见文献......