Two compounds were isolated from ethyl acetate extract of the fermentation of fungus 07-11,which obtained from the soil of Yunnan Province. They were identified as N-(4-hydroxy-2-methoxyphenyl)acetamide (1) and ergosta-7,22-diene-3,6-dione (2) respectively on the basis of spectral analyses and physical and chemical identifications.

從云南土壤真菌07-11號菌株的發(fā)酵液乙酸乙酯萃取物中分離得到2個化合物欧美肛交视频，通過理化鑒別和光譜測定绿帽人妻91社区，鑒定兩化合物分別為N-(4-羥基-2-甲氧苯基)乙酰胺(1)和麥角甾7中文字幕第2中文字幕第二页，22-二烯-3精品日本三级在线观看，6-二酮(2)。

This chelating starch was used to chelate copper and argentum ions,and thermal gravity analysis was .

以淀粉為原料99re9精品视频，接枝丙烯酸甲酯2019黃色免費看，然后與乙二胺反應(yīng)，合成了具有多個酰胺基和胺基的螯合淀粉。

Polyethersulfone with cardo was a developed engineering thermoplastic and membrane material with high glass transition temperature,PES-C ultrafiltration membranes were prepared by phase inversion method using dimethylacetamide as solvent and oxalic acid and polyethylene glycol as additives.The membrane morphology forming and evolution could be observed by the experimental system and method.The effect of additive and polymer concentration on cast solution and the gelation kinetics of polyethersulfone with cardo asymmetric membrane were studied.

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It was obtained with ethylenediamine and ethenesulfonic sodium as primary material through addition.

它是一種易降解的新型Gemini表面活性劑－N亚洲h视频网站大全， N'-雙癸酰基乙二胺二乙磺酸鈉的中間體人人操人人涩。

Benzyloxy benzoyldimethylsulfoxide was prepared by the reaction of ethyl 4-benzyloxybenzoate and dimethyl sulfoxide in the presence of sodium hydride, followed by Pummerer reaction with concentrated hydrochloric acid to afford eo-hydroxy-co-thio-methyl-(4/-benzyloxy) acetophenone, which reacted with urea, thiosemicarbazide, semicarbazide hydrochloride and o-phenylenediamine to give imidazolidine-2,4-dione, l,2,4-triazine-3- one and quinoxaline derivatives, respectively.

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N-(1-Naphthyl)ethylenediamine dihydrochloride solution was injected into the mixed flow of the water sample and sulfanilamide solution. Red dye formed by the reactions was spectrophotometrically detected at lλmax 540 nm.

將N-(1-萘基)乙二胺二鹽酸鹽溶液注入到水樣和對氨基苯磺酰胺溶液的混合流欧美丰满熟妇性69，在lλmax 540nm處對反應(yīng)形成的紅色染料進行分光光度檢測欧美一区黄片免费看。

N-1-Naphthylethylenediamine dihydrochloride solution was injected into the mixed flow of the water sample and sulfanilamide solution. Red dye formed by the reactions was spectrophotometrically detected at lλmax 540 nm.

將N-1-萘基乙二胺二鹽酸鹽溶液注入到水樣和對氨基苯磺酰胺溶液的混合流，在lλmax 540nm處對反應(yīng)形成的紅色染料進行分光光度檢測国产精油按摩一级毛片。

Results show that, by using thionyl chloride and N,N-dimethyl formamide as chlorinating reagent and dichloromethane as solvent and taking -15℃ as reaction temperature, Z-iomer crystals with pale white color and stable to temperature can be obtained with an overall yield of 70%.

以2-（2-氨基噻唑－4-基）－2-甲氧亞氨基乙酸為原料黄色大片最新网址品尚j8，經(jīng)鹽酸化、氯代等反應(yīng)合成了Z-2-（2-氨基噻唑－4-基）－2-甲氧亞氨基乙酰氯鹽酸鹽能看av的网址；氯代時以用亞硫酰氯和NAAAAA欧美一级黄色片，N-二甲基甲酰胺的混合物代替五氯化磷作氯化劑，并考察了溫度和溶劑對氯代產(chǎn)物中Z-異構(gòu)體和E-異構(gòu)體收率的影響亚洲av清无码精品自拍。

The condensation of aromatic aldehydes with active methylene compounds like malononitrile, cyanoacetamide and ethyl cyanoacetate has been found to proceed very efficiently at room temperature giving excellent yields, but the condensation of heteroaromatic,α,β-unsaturated and aliphatic aldehydes with active methylene compounds proceeded smoothly in 50~65℃ with good yields and the reactions of aromatic, aliphatic ketones as well as p-phthalaldehyde with malononitrile also proceeded in 75~85℃ with moderate yields.

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