1) Trans-effect
反式效应
1.
The Influence of Complexes’ Configuration,Ligand’s Properties and Trans-effect on the Acid-catalyzed Reaction Mechanisms of trans-Ru(py)_4(NO_2)_2, trans-Ru(bpy)_2(NO_2)_2 and cis-Ru(bpy)_2(NO_2)_2;
配合物构型、配体结构及反式效应对Ru(Ⅱ)吡啶类配合物中NO_2~-配体在酸催化下反应机理的影响
2) cis-trans effect
顺-反式效应
3) anti-a priori graphic effect
反先验图式效应
4) Responds the effect
反应效应
5) reaction efficiency
反应效率
1.
This paper discussed the effect of cationic agent and catalyst dosages, reaction temperatureand reaction time on the degree of substitution and reaction efficiency of cationic starch prepared by dry process.
讨论了干法制备阳离子淀粉工艺中阳离子试剂、催化剂用量及反应温度、反应时间等因素对取代度和反应效率的影响。
2.
The effect of different reaction conditions on the substituted degree(DS) and reaction efficiency of starch phosphate monoester were also studied in this paper.
采用磷酸与焦磷酸钠按一定配比混合作为酯化试剂,尿素为催化剂干法制备高取代度磷酸单酯淀粉,并研究不同反应条件对磷酸单酯淀粉取代度(DS)及反应效率的影响。
3.
7 g,the optimized reaction efficiency was obtained;under the conditions that sodium/ amine molar ratios 1.
采用单因素实验、正交实验确定了获得高反应效率的最优条件为:催化剂与醚化剂的摩尔比1。
6) Enhanced reaction of modification
增效反应
补充资料:反式,反式-1,3-丁二烯-1,4-二羧酸
分子式:C6H6O4
分子量:142.11
CAS号:3588-17-8
性质:熔点290°C (dec.)。沸点320°C。水溶性insoluble。
分子量:142.11
CAS号:3588-17-8
性质:熔点290°C (dec.)。沸点320°C。水溶性insoluble。
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