ethyl p-hydroxybenzoate
英
美
网络 对羟基苯甲酸乙酯; 苯甲酸乙酯
双语例句
- Ethyl p-hydroxybenzoate was synthesized with p-hydroxy benzoic acid and ethanol as raw materials and activated carbon supported tungstosilicic acid as catalyst under microwave irradiation.
借助微波辐射技术，以活性炭负载钨硅酸为催化剂，尼泊金酸和乙醇为原料合成了尼泊金酸乙酯。 - Synthesis of Ethyl p-Hydroxybenzoate Catalyzed by Activated Carbon Supported Tungstosilicic Acid under Microwave Irradiation
微波辐射活性炭负载钨硅酸催化合成尼泊金酸乙酯 - The preparation of ethyl p-hydroxybenzoate by the catalytic reaction ofp-hydroxybenzoic acid with ethanol with copper p-toluene sulfonate as catalyst had been studied.
研究了以对羟基苯甲酸、乙醇为原料、对甲苯磺酸铜为催化剂、合成对羟基苯甲酸乙酯，并讨论了催化酯化的影响因素。 - Study on the catalytic synthesis of ethyl p-hydroxybenzoate
合成尼泊金乙酯的催化剂研究 - Methyl, ethyl and butyl p-hydroxybenzoate were synthesized on SO_4~ ( 2-)/ bentonite catalyst.
考察了SO4~（2-）/膨润土固体酸催化剂在对羟基苯甲酸与甲醇、乙醇、正丁醇酯化反应中的作用，以及反应时间，催化剂用量和溶剂对酯化反应的活性的影响。 - Methods: Using ethyl p-hydroxybenzoate as the internal standard.
方法：以对-羟基苯甲酸乙酯为内标，采用反相高效液相色谱法，二极管阵列检测器检测。 - Catalytic Synthesis of Ethyl p-Hydroxybenzoate With the Solid Superacid S_2O_8~ ( 2-)/ ZrO_2-Al_2O_3
固体超强酸S2O8~（2-）/ZrO2-A12O3催化合成对羟基苯甲酸乙酯 - HPLC determination of ethyl p-hydroxybenzoate in Dragon's Blood
HPLC测定龙血竭中对羟基苯甲酸乙酯的含量 - A discussion on the Synthesis of ethyl p-hydroxybenzoate with different catalysts
采用不同催化剂合成对羟基苯甲酸的讨论 - P-methoxyphenol or ethyl p-hydroxybenzoate reacted with epichlorohydrin in the presence of base ( NaOH), the obtained epoxy was then treated with different amines to give 2-propanol derivatives, their structures were determined by 1H NMR, mass spectrum and IR;
对甲氧基苯酚或对羟基苯甲酸乙酯在碱催化下与环氧氯丙烷反应生成环氧化物，然后再与各种胺反应得到胺基异丙醇衍生物，它们的结构经1HNMR、质谱和IR确证； - New Method of Synthesis for Ethyl p-Hydroxybenzoate
对羟基苯甲酸乙酯合成的新方法