Then it is unclear whether the system reacts to the stimuli in steps (1) and (n) in one reaction, or whether the system instead reacts to steps (1) and (n) separately.
现在还不清楚系统是否对步骤(1)和(n)中刺激源作出了反应，或者系统是否对步骤(1)或者步骤(n)分别作出。
Because N-heterocyclic carbene has very high activity of reaction, it can react with all elements in periodical table.
杂环卡宾的反应性能较高，它们与周期表中几乎所有的元素都能发生反应。
The reversibility of the electrode reaction of poly (N methyl) aniline was inspected by cyclic voltammetry.
用循环伏安法考察了聚（N-甲基）苯胺电极反应可逆性；
Poly (N-vinylpyrrolidone) with carboxylic end groups and amino end groups (PNVP-NH2) were prepared by the chain transfer reaction in free radical polymerization.
利用普通自由基聚合中的链转移反应，分别制备了以羧基为端基的聚和以胺基为端基的聚(PNVP - NH2)。
In this study, N-methylene phosphonic chitosan (NPCS) was synthesized via formaldehyde addition and condensation with phosphoric acid in a step reaction.
以甲醛和磷酸为反应试剂，采用均相反应法制备出壳聚糖(CS)的磷酸化衍生物-甲基磷酸化壳聚糖(NPCS)。
The reaction of N chloro derivatives of butylamide (BA) with 1 propanol in neutral aqueous solutions were investigated.
研究了1 -丁酰胺的N-氯代衍生物与1 -丙醇水溶液在弱碱性条件下的化学反应。
Besides temperature and concentration of reaction, the heating rate plays an important role on the size and morphology of n-HA crystals.
研究发现在反应物浓度及配比一定的情况下，反应温度及升温速度对纳米ha晶体尺寸形态有重要影响。
It is shown that the best crosslinking reaction technological condition is: the molar ratio for the N-hydroxymethyl propylene acryl amine and the acrylonitrile monomer is 0.
确定最佳交联反应工艺条件为：n羟甲基丙烯酰胺与丙烯腈单体的摩尔比为0。
The catalyst is a twisted chair structure and reacts with borane at the N site of the catalyst to form catalyst borane adduct. The formation reaction is exothermic.
催化剂具有扭曲的椅式构型，与硼烷在N原子处配位形成加合物，反应是放热的。
The amidocarbonylation reaction conditions were optimized and 66.4% isolated yield of racemic N-acetylleucine were obtained.
文中对酰胺羰基化反应条件进行了优化，分离得到消旋N-乙酰基亮氨酸产率为66.4%。
Methods the effects of amount of gallium sulfate, molar ratio of alcohol to acid, reaction time and repeated times of catalyst on the yield of n-butyl propionate were investigated.
方法考察硫酸镓用量、醇酸物质的量比、反应时间及催化剂重复使用次数等因素对收率的影响。
The results illustrate that chemistry reaction of the soil is weakly alkaline, the K nutrition is plentiful, whereas N and P are insufficient in most parts of the reed fields in Hubei province.
结果表明：绝大多数苇田呈碱性反应，钾素营养丰富，氮、磷养分普遍不足；
Field experiment was carried out in Guanzhong area, Shaaxi province using Capsicum as indicator, to study Capsicum to fertilizer effect reaction of n, p, K fertilizer.
在陕西省关中土娄土区布置线辣椒缺素大田试验，研究线辣椒对氮、磷、钾肥的肥效反应。
The influence of the molar ratio of n-amyl alcohol and acetic acid, the quantity of the catalyst, the reaction time etc on the ester yield was discussed.
探讨了醇酸物质的量比、催化剂用量、反应时间等因素对酯收率的影响。
In this paper, a new chloroform production process by reaction of chlorinated oil with dimethyl amine instead of lime is introduced, in which N, N- dimethyl methanamide is coproduct.
介绍了一种采用二甲胺代替石灰与氯油反应，在生产氯仿的同时联产N，N-二甲基甲酰胺的新工艺。
The kinetics of the first order autocatalytic decomposition reaction of nitrocellulose (NC, 11.92%n) was studied by using DSC.
用DSC研究了硝化棉(NC, 11.92%N)的一级自催化分解反应动力学。
Their phase transfer catalytic ability for the reaction of N-alkylation, O-alkylation and oxidation were also determined.
测定了其对氧烷基化反应、氮烷基化反应的相转移催化作用。
QU exhibited competitive inhibition of CYP3A2 dextromethorphan N-demethylation reaction and expressed noncompetitive inhibition of CYP2E1 chlorzoxazone-6-hydroxylation reaction.
槲皮素竞争性抑制CYP3A2右美沙芬N脱甲基反应，非竞争性抑制CYP2E1氯唑沙宗6羟化反应。
N-oleoyl alanine was prepared by the reaction of alanine with chlorides under alkali solution.
将油酸酰氯和谷氨酸在碱性溶液中反应制备了N -油酰基谷氨酸。
N-Phenyl-benzenamine reaction products with styrene and 2,4,4-trimethylpentene.
二苯胺与苯乙烯和2，4，4-三甲基戊烯的反应产物。
The ester exchange reaction on phosphorus of N-phosphorylhistidine with primary alcohol has been studied by MNDO method.
用MNDO方法对磷酰化组氨酸磷上酯交换反应侧链咪唑基所参与的六配位磷机理进行了研究。
In the presence of hypervalent iodine reagents (PIFA), Direct coupling reaction of N-acetyl-indole with aromatic compounds provided C-3 arylated indoles in high regioselectivity.
我们使用高价有机碘试剂（PIFA）做氧化剂，实现了N-乙酰基吲哚与芳香化合物的直接偶联反应，得到了吲哚3号位高选择性的偶联产物。
All transition states, activation energies and potential curves of four possible reaction paths were obtained. It was found that the homolysis of n-no2 bond in five-membered ring is the initial step.
求得可能的四种不同热解反应通道的过渡态、活化能和位能曲线，发现其热解引发步骤为五元环上侧链n—NO2键的均裂。
IR and n-hexane cracking reaction were used to investigate the effect of different treatment conditions on acidity and catalytic activity.
用红外光谱和正己烷裂解反应考察了不同处理条件对其酸性和催化活性的影响。
New allyl lithium THF complex was prepared conveniently by the reaction of propene with n-butyl lithium in the presence of tetrahydrofuran.
在四氢呋喃存在下，将丙烯和丁基锂直接反应合成了未见文献报道的烯丙基锂四氢呋喃配合物。
Butyl lactate was synthesized by the ester exchange reaction of d, L-lactide and n-butanol under the catalysis of sulfuric acid.
研究了D,L -丙交酯在浓硫酸催化作用下与正丁醇进行酯交换反应合成乳酸丁酯的条件。
The chitosan was prepared with 92% deacetylation degree using n-butanol and sodium hydroxide as a reaction medium and cetyltrimethylammonium bromide as a phase transfer catalyst.
采用正丁醇-氢氧化钠反应体系，以十六烷基三甲基溴化铵为相转移催化剂，制得脱乙酰度为92%的壳聚糖。
The esterification reaction of propionic acid with n-pentanol was studied by using novel aluminophosphate and silicoaluminophosphate molecular sieves as catalysts.
用新型磷酸铝分子筛和硅磷酸铝分子筛作催化剂，对丙酸和正戊醇液—固相酯化反应进行了研究。
The optimum reaction conditions of catalyzed synthesis of n-octyl lactate had been studied with the ferric solid superacid as catalyst.
以铁系固体超强酸为催化剂，研究了催化合成乳酸辛酯的最适宜反应条件。
The optimum reaction conditions of catalyzed synthesis of n-octyl lactate had been studied with the ferric solid superacid as catalyst.
以铁系固体超强酸为催化剂，研究了催化合成乳酸辛酯的最适宜反应条件。
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