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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......
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......
3,4-Dihydropyrimidin-2(1H)-ones (DHPMs) were oxidized with 1.2 equiv, of nitrosonium tetrafluoroborate (NO~+BF_4~-) to p......
A highly efficient catalyst indium (III) tribromide is used to synthesize 5-alkoxy- carbonyl-4-hydrocarbyl-3,4-dihydropy......
We report herein the use of p-dodecylbenzenesulfonic acid (DBSA) as a catalyst for a one-pot Biginelli reaction to affor......
