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......

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......

Trimethylsilylation of alcohols was achieved using 1,1,1,3,3,3-hexamethyldisilazane(HMDS) as silylating agent,in the pre......

2-(Sulfooxy)propane-1,2,3-tricarboxylic acid(supported on silica gel) has been introduced as novel and green catalyst fo......

Different alcohols were formylated by formic acid under solvent-free conditions in the presence of iodine as the catalys......

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Different alcohols were formylated by formic acid under solvent-free conditions in the presence of iodine as the catalys......

The catalytic application of p-toluenesulfonyl chloride for efficient acetylation of various types of alcohols and pheno......

A facile and efficient method for the formylation of Grignard reagent was reported, and a new approach for the preparati......

Trimethylsilylation of alcohols was achieved using 1,1,1,3,3,3-hexamethyldisilazane (HMDS) as silylating agent, in the p......

2-(Sulfooxy)propane-1,2,3-tricarboxylic acid (supported on silica gel) has been introduced as novel and green catalyst f......

以β-苯乙酮碳苷为母体,经过羰基还原、选择性甲酰化,再与荧光素酰肼进行缩合反应,合成了一种新型的荧光素-碳苷衍生物,并初步探究......

从叶绿素-α或者叶绿素-b开始,制备出焦脱镁叶绿酸-α甲酯或者焦脱镁叶绿酸-b甲酯,通过四氧化锇氧化和空气氧化反应,在二氢卟吩周......

The Vilsmeir formylation of 6 dialkylferrocenes has been found toproduce nearly exclusively β-isomers.The effect of tem......

目的研究合成烯胺酮类化合物的新路线。方法以含活泼甲基、亚甲基的酮为原料，以甲酸乙酯为羰基化试剂，得到多一个醛羰基的酮，冉与二甲......

介绍了5-氨基-1-羟乙基吡唑的合成及酰化保护其氨基和羟基的方法,分析了反应机理、影响反应的因素。合成5-氨基-1-羟乙基吡唑的纯......

以邻二甲苯和CO为原料、粉状无水AlCl4为催化剂、1，2-二氯乙烷为溶剂，利用甲酰基化与羰基化分步反应，在n（A1C13）：n（邻二甲苯）-1．0：1、CO压力1......