2) mono-substituted benzenes
一元取代苯
1.
Based on the molecular orbital theories, three kinds of methods are systematically introduced, such as the π charge density method, localization energy method and frontier electron density method, which are used in predicting the reactivity at the ortho, para and meta position of the mono-substituted benzenes.
以分子轨道理论为基础,系统介绍了π电荷密度法、定域能法和前线电子密度法等三种用于预测一元取代苯进行亲电取代反应时邻、间、对位的相对反应活性及反应产物的方法。
3) phenylaliphatic acid
脂肪族苯基取代一元酸
4) Substituted benzoic acid
取代苯甲酸
1.
QSAR study on the regulator activity of substituted benzoic acids to plant ghrowth using topological methods
取代苯甲酸对植物生长调节活性的拓扑QSAR研究
2.
A satisfactory equation between 0M,1M and the first order biodegradation dynamic contant (lg k) of substituted benzoic acids is established as-lg k=-0.
其中的①M、1M与取代苯甲酸的生物降解速度常数(lgk)具有良好的相关性-lgk=-0。
3.
Ten glucosyl esters of substituted benzoic acids can be prepared by two methods: one is PTC; the other is the substitution of benzoic acid with acetylbromoglycose in the presence of Nt tN to obtain the corresponding compounds.
以两种方法合成了 10个取代苯甲酸葡萄糖酯类化合物 ,一是相转移催化法 ,二是在三乙胺的存在下 ,取代苯甲酸与溴代葡萄糖反应 ,该种合成糖酯的方法未见文献报道。
5) substituted benzoic acids
取代苯甲酸
1.
The adsorption behavior of substituted benzoic acids on D_ 252 macroporous anion exchange resign was observed by electric conductance technigue.
利用电导实验技术,跟踪观察D252大孔离子交换树脂吸附取代苯甲酸的行为。
2.
Taking the water from natural river as the source of bacteria,Biochemical Oxygen Demands of 20 substituted benzoic acids in five days were measured by iodinmetry method.
以天然河流水作为微生物源 ,采用碘量法测定了 2 0种苯甲酸类化合物的 5日生化需氧量 ,并以其占理论需氧量的百分数作为表征生物降解性的参数 ,得出各类取代苯甲酸类化合物的生物降解能力为 :羟基 >氨基 >羧基 >甲氧基 >氯基 >硝基 ;对于同一种取代基 ,对位取代基化合物生物降解能力最大 ,而邻位、间位取代基化合物生物降解能力大体相同。
3.
Taking Songhua river as the source of bacteria,the biodegradabilities of substituted benzoic acids in river water were studied by the shake-flask test method.
以松花江水作为微生物源 ,采用摇瓶法研究了取代苯甲酸的生物降解动力学 。
6) substituted benzaldehyde
取代苯甲醛
1.
Objective: A series of novel substituted benzaldehyde diamines Schiff bases were synthesized for screening antibacterical agents.
目的 :设计合成一系列新的取代苯甲醛缩二胺类双席夫碱 ,通过抗菌活性测试寻找具有抗菌活性药物。
补充资料：4-乙基甲苯，对乙基甲苯
CAS：622-96-8
分子式：C9H12
分子质量：120.19
中文名称：4-乙基甲苯，对乙基甲苯
英文名称：1-ethyl-4-methyl-Benzene；p-ethyl-toluen；1-ethyl-4-methylbenzene；4-ethyltoluene；4-methylethylbenzene；1-ethyl-4-methyl-benzen；p-ethylmethylbenzene；p-ethyltoluene
沸点：162℃
熔点：-62℃
分子式：C9H12
分子质量：120.19
中文名称：4-乙基甲苯，对乙基甲苯
英文名称：1-ethyl-4-methyl-Benzene；p-ethyl-toluen；1-ethyl-4-methylbenzene；4-ethyltoluene；4-methylethylbenzene；1-ethyl-4-methyl-benzen；p-ethylmethylbenzene；p-ethyltoluene
沸点：162℃
熔点：-62℃
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条