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Then, N-(5-nitro-6-chloro-3-pyridinemethyl) phthalimide is obtained after the nitrating reaction of N-(6-chloro-3-pyridine methyl) phthalimide. The yield of the obtained product is 90.5%, and its melting point is 143.1~143.8℃.

缩合产物再经过硝化,合成N-(5-硝基-6-氯-3-吡啶甲基)邻苯二甲酰亚胺,其熔点为143.1~143.8℃,收率为90.5%。

The intermediates 2a~2f of cyclic (1-arylseleno)glycerol phosphate and tegafur conjugates were synthesized by one-pot reaction of hexaethyl phosphorous triamide, activated by a catalytic amount of iodine, with (N3-tegafur)alkanol, 1-arylselenoglycerol and sulphur successively in refluxing benzene.

以碘作催化剂,无水苯为溶剂,六乙基亚磷酰三胺依次与羟乙基替加氟、1-芳硒基甘油及硫反应,得中间体硒代环甘油磷脂替加氟缀合物2a~2f。

Pomalidomide is a new IMiD with high in vitro potency.

3-氨基-N-(2,6-二氧代-3-哌啶基)邻苯二甲酰亚胺是一种体外高效力的新型IMiD。

Lactin and Ringer's solution, 25ml.

太棒了 内酰亚胺苯溶液25ml

Fluoroalkyl acetic acids were converted to their corresponding carbonyl chlorides, and the latter reacted with o-aminpbenzyl aldehyde and ammonia gas to give 3-(1-imino-fluoroalkyl)-1H-quinolin-2-ones in moderate yields.

将2-氟烷基乙酸转化成相应酰氯,后者与邻氨基苯甲醛在通氨气条件下以较高产率转化为相应的3-(1-亚胺基-氟烷基)-1H-喹啉-2-酮。

The effect of assistant vulcanizing agent PDM on the properties of CM/NBR blends which is vulcanized by the peroxide is investigated.

研究了N,N'-间苯撑双马来酰亚胺对丁腈橡胶/氯化聚乙烯共混物性能的影响。

The biogenic amines in test samples were extracted by 10% trichloroacetic acid and then derived with benzoyl chloride. The HPLC analysis for the samples were conducted as the following condition: mobile phase was a gradient elution program of methanol and water, the flow rate was 0.8 mL/min.

用10%的三氯乙酸提取样品中的生物胺,采用苯甲酰氯衍生处理后,以甲醇/水为流动相,进行梯度洗脱,流速0.8 mL/min,紫外检测器波长为254 nm。

The effect of reaction temperature,reaction time,materials ratio on the synthesis of piperidine alcohol benzoate ,hindered amine light stabilizer,from piperidine alcohol and benzoyl chloride by direct condensation were studied,and the proper technological conditions were given as follows:the reaction temperature is 95℃;reaction time is 4 h; the mole ratio of reactants,n∶n is 1∶1.4,the amounts of solvent is 40 mL(based 0.1mol piperidine alcohol),the arerage yield ...

王树清,高崇,苯甲酸哌啶醇酯HALS的合成工艺研究研究了以苯甲酰氯和哌啶醇为原料直接缩合合成苯甲酸哌啶醇酯受阻胺光稳定剂时反应温度、反应时间、原料配比等条件对合成反应的影响,确定了最佳工艺条件。最适宜的工艺条件是:反应温度95℃、反应时间6h、原料摩尔比n∶n为1∶1.4,溶剂用量为70mL(相对于0.1mol哌啶醇),苯甲酸哌啶醇酯的收率为91.05%,产品纯度98.5%。

The results showed that with the concentration of ozone,ozone treatment time and temperature increasing,the captan residue in apples decreases gradually.

克菌丹化学名称为N-三氯甲硫基-1,2,3,6-四氢苯邻二甲酰亚胺,分子式为C9H8Cl3NO2S,易溶于有机溶剂,在酸性条件下稳定,碱性时易分解。

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The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。

The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.

聚光:照片上是建在西班牙桑路卡拉马尤城的一座新型PS20塔式太阳能电站。被称为&日光反射装置&的镜子将太阳光反射到主塔,然后用聚集的热量产生蒸汽进而通过涡轮机转化为电力