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Alkylamine reaction with dialkyl cyanodithioiminocarbonate was catalyzed by quaternary ammonium salts at room temperature to yield 3-alkylamine-5-amino-1,2,4-triazole in good quality and high yields. After imidization and reaction with an α,β-unsaturated acid derivative, the reaction intermediate was hydrolyzed in the presence of a Lewis acid to obtain the target product.

烷基胺与氰基亚胺硫代二甲酯在季氨盐催化作用下得到质量好、收率高的3-烷氨基-5-氨基-1,2,4-三氮唑,进一步经过亚胺中间体并与α,β-不饱和酸酯作用后,中间产物在Lewis酸催化作用下水解得到三唑嘧啶酮。

In my opinion, Cu complexes with unsaturated alcohol to form a complex compound; the nitrogenous compound introduced serves as the complex compound's stabilizing agent and reduces activation energy of reaction; TMPO serves as oxygen carrier and displays it's selective oxidation function. This new method and mechanism also demonstrates significance to other similar organic reactions.3 In the chlorohydrin reaction, NaCIO is replaced by Ca2see Chapter4.4.3.4(2 .A, this method hasn't been reported in previous literature,which exerts more buffer action to the react system, the yield increased from 52% to 88.6%; at the same time it solve the problem of poor stability and low percentage composition of NaCIO.

认为:CuD与烯醇形成络合物:含氮有机物的引入起到稳定络合物,降低活化能的作用:而TMPO则充当携氧子起传递氧的作用,并具有选择氧化功能:这种新的方法和理论对类似的反应(不饱和醇类在络合体系下选择性催化氧化为对应的醛也具有重要的指导作用。3在异戊二烯的氯醇化反应中,用次氯酸钙代替次氯酸钠见第4章4.3.4(2.A,本方法未见文献报道,使反应系统更加温和,收率由52%提高到88.6%:并解决了次氯酸钠稳定性差、有效氯含量低的实际问题,具有重要的实用意义。

Using 2,4,6-〓 as phase-transfer catalyst, ten symmetrical azobenzene were prepared with a saturated solution of potassium ferricyanide in 2N aqueous potassium hydroxide and dichloromethane.

用2,4,6-三叔丁基苯酚为相转移催化剂,芳胺类化合物在饱和铁氰化钾的氢氧化钾溶液和二氯甲烷的两相转移催化下合成了10个对称取代偶氮苯,并对反应机理也做了合理的解释。

Result: The flux of anemonin permeating through human skin from 30% ethanol, 50% ethanol solution and a combination of 3 % laurocapm -5% polysorbate 20 and 30 % ethanol -3 % laurocapm -5% polysorbate 20 of anemonin was (9.30±0.32),(18.56±0.58),(7.29±0.35),(13.77±0.16)μg·cm-2·h-1 and 7.9, 15.9, 6.2, 11.8 times higher than from saturated water solution respectively.

结果:白头翁素饱和水溶液的稳态渗透速率为(1.17±0.03)μg·cm-2·h-1,含30%、50%乙醇和3%月桂氮酮-5%聚山梨酯20、30%乙醇-3%月桂氮酮-5%聚山梨酯20的白头翁素溶液稳态渗透速率为(9.30±0.32),(18.56±0.58),(7.29±0.35),(13.77±0.16)μg·cm-2·h-1,分别使白头翁素的经皮渗透速率提高了7.9,15.9,6.2,11.8倍。

The values of D10 and D for the total bacteria in boiled dumplings under chill state were 2.04 kGy and 4.00 kGy, the value of D10 and D for E. coli were 1.25 kGy and 2.00 kGy. TBAS were increased significantly and excessed the trade standard by 5 kGy γ-irradiation. However, the TBAS would be decreased with addition of antioxidants. Lipid peroxide,volatile basic nitrogen,"a" value of color and "b" value of color showed a tendency of increase, and moisture content and Aw showed a tendency of decrease, which did not achieve a significant level(p.05) by 1 to 5 kGy doses of γ-irradiation. Total acidity, amino acid nitrogen and free fatty acid showed no significant differences between treated and control samples. Sensory evaluation values were decreased and were all well within the acceptable level by 1 to 5 kGy doses of γ- irradiation.

辐照能有效降低鲜熟水饺细菌总数和大肠菌群数量,鲜熟水饺中细菌总数和大肠菌群的 D10值分别为 2.04 kGy 和 1.25kGy,D 值分别为 4.00 kGy 和 2.00kGy;0~5kGy 辐照鲜熟水饺 TBA 值随辐照剂量增加而增加,5kGy 辐照已使之超过国家行业标准限量要求;辐照鲜熟水饺过氧化值、挥发性盐基氮、色差 a 值、色差 b值存在随辐照剂量增加而增加的趋势、水分含量存在下降趋势,但变化未达到显著水平(p.05);对酸度、氨基酸态氮、水分活度、游离脂肪酸含量等其他理化指标没有显著影响;较高剂量辐照使产品感官质量降低,却都在可接受范围内; 4kGy 辐照使维生素 B1下降 31.94%,对维生素 E、蛋白、脂肪、氨基酸、不饱和脂肪酸含量无显著影响。

The result of these varieties is to accelerate photosynthesis and improve seedlings bio-mass accumulation.There exists some remarkable plus correlative relation between Machurian Ash seedling leaf net photosynthetic rate under light saturated condition and leaf nitrogen content.

水曲柳幼苗叶片的光饱和净光合速率与叶片氮含量之间也存在着强烈的正相关关系,适当提高氮素养分的供应会相应增加叶片中的氮含量,从而促进植物光合作用,有利于生物量的积累。

Soil physical properties(Water saturated content、Field capacity、Capillary porosity、Non-capillary porosity、The total porosity) The number of micro-organisms(bacteria,fungi and actinomycetes)、activity of the enzyme and nutrient content (Organic matter、TN、AN、P、AP) In the two types of landscape are reflected in the type of surface(0-20cm) higher than the sub-surface(20-40cm).

2土壤物理性质(饱和含水量、田间持水量、毛管孔隙度、非毛管孔隙度、总孔隙度)、微生物数量、酶活性(过氧化氢酶、脲酶和蔗糖酶)及养分含量(有机质、全氮、有效氮、全磷、速效磷)在不同景观及其界面中均表现为表层(0-20cm)高于亚表层(20-40cm)。

Using free radical 4-hydroxy-2,2,6,6-tetramethyl-1-piperidinyloxyl as catalyst, the phase transfer catalyzed method of oxidation of anilines to 15 symmetrical azobenzenes with a saturated solution of potassium ferricyanide in 2N aqueous potassium hydroxide and dichloromethane was described for the first time.

用2,2,6,6-四甲基-4-羟基-1-哌啶氮氧自由基为催化剂,芳胺类化合物在饱和铁氰化钾的氢氧化钾溶液和二氯甲烷的两相转移催化下合成了15 个对称取代偶氮苯。

The structures were identified by IR, UV,〓 NMR and element analyses. 2. Free radical 4-hydroxy-2,2,6,6-tetramethyl-1-piperidinyloxyl as catalyst, the phase transfer catalyzed method of oxidation eighteen semicarbazides to N-Aryl-2-Phenyl diazenecarboxamide with a solution of potassium ferricyanide in 2N aqueous sodium hydroxide and dichloromethane is described for the first time.

利用2,2,6,6-四甲基-4-羟基-1-哌啶氮氧自由基为相转移催化剂,在饱和铁氰化钾的2N氢氧化钠溶液与二氯甲烷的两相反应液中,催化氧化十八个取代氨基脲得到十八个相应的新型偶氮化合物N,2-二芳基二氮亚烯甲酰胺,均获得了较高的产率。

Progresses on reactions of NO, CAN, and hydrazone Reactions of NO with olefines, phenols, amines, arylhydrazines, Schiff bases and nucleosides are firstly reviewed.

本论文主要研究了一氧化氮及硝酸铈铵与简单醛酮腙、α,β-不饱和酮腙的反应,全文共分五个部分: 1、一氧化氮、硝酸铈铵及腙的反应研究首先对具有特殊生物活性的NO与烯、酚、胺、肼、Schiff碱、核酸碱基等有机物的反应做了全面的总结。

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Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气,收缩臀部肌肉;拱起身体,尽量抬起头来,右腿伸直朝向天花板(膝微屈,以避免肌肉紧张)。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化,但却比去年同期高8%。

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