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碘醇

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Butyraldehyde glycol acetal was synthesized from butyraldehyde and glycol by using iodine as catalyst.

以单质碘为催化剂,通过丁醛和乙二醇反应合成了丁醛乙二醇缩醛。

A selective and mild PS-DIB/ionic-liquid immobilized 2, 2, 6, 6-tetramethyl-piperidin-4-ol-N-oxyl catalytic oxidation procedure of alcohols to the corresponding aldehydes and ketones in ionic liquid BF4 at room temperature was developed. The oxidant PS-DIB was prepared via the iodation and acetylation of polystyrene resin. For the preparation of the ionic-liquid immobilized TeMPO catalyst, 4-(2, 2, 6, 6-Tetramethyl-1-oxyl-4-piperidoxyl)butyl bromide was first synthesized from TeMPO and 1, 4-dibromobutane.

将聚苯乙烯树脂先碘化再乙酰基化,制得了负载型二乙酰氧碘苯作为氧化剂。2, 2, 6, 6-四甲基-N-氧自由基哌啶醇与1, 4-二溴丁烷反应生成4-溴丁氧基-2, 2, 6, 6-四甲基-哌啶-1-氧化物,再与N-甲基咪唑发生季铵化反应,生成的溴化季铵盐与四氟硼酸钠进行离子交换制得氟硼酸型2, 2, 6, 6-四甲基-N-氧自由基哌啶负载离子液体。

A selective and mild PS-DIB/ionic-liquid immobilized TEMPO catalytic oxidation procedure of alcohols to the corresponding aldehydes and ketones in ionic liquid BF4 at room temperature was developed. The oxidant PS-DIB was prepared via Iodation and acetylation of polystyrene resin. For the preparation of the ionic-liquid immobilized TEMPO catalyst, 4-(2,2,6,6-Tetramethyl-1-oxyl-4-piperidoxyl)butyl bromide was first synthesized from 2,2,6,6-tetramethyl-piperidin-4-ol-N-oxyl and 1,4-dibromobutane.

将聚苯乙烯树脂先碘化再乙酰基化,制得了负载型二乙酰氧碘苯(diacetoxyiodo polystyrene,PS-DIB)作为氧化剂。2,2,6,6-四甲基-N-氧自由基哌啶醇(2,2,6,6-tetramethyl-piperidin-4-ol-N-oxyl,TEMPO)与1,4-二溴丁烷反应生成4-溴丁氧基-2,2,6,6-四甲基-哌啶-1-氧化物,再与N-甲基咪唑发生季铵化反应,生成的溴化季铵盐与四氟硼酸钠进行离子交换制得氟硼酸型2,2,6,6-四甲基-N-氧自由基哌啶负载离子液体TEMPO-IL。

Surface-modified lead iodide nanorods were synthesized by one-step room temperature solid-state reaction of lead nitrate with potassium iodide in the presence of a nonionic surfactant, polyethyl- ene glycol.

以硝酸铅和碘化钾为原料,在体系中添加表面活性剂聚乙二醇,采用一步室温固相化学反应制备出聚乙二醇表面修饰的碘化铅纳米棒,利用X射线衍射,红外光谱,透射电子显微镜,扫描电子显微镜,热分析和元素分析等手段对其进行了表征。

The analytical method for sodium methyl mercaptide was established based on the reaction in quantity between methyl mercaptan and iodine at the base condition.

采用甲硫醇与碘在碱性条件下定量反应生成双硫醚的反应原理,建立了甲硫醇钠的定量分析方法。

Rare precious metals company mainly engaged in electroplating and metal surface treatment, environmental treatment, washed clean of raw materials: silver nitrate, nitric acid and rhodium, palladium nitrate; Asia selenium acid, selenium dioxide, tellurium dioxide, mineral selenium powder Japan, Mitsubishi Se powder, Mitsui, Sumitomo, emerging, Germany selenium powder; molybdenum trioxide, DMF; TX-10, NP-9 series, EDTA series; sodium hypophosphite, nickel nitrate, metal thallium, rhodium, palladium, platinum , Beryllium, Ritek, zirconium products; sponge palladium; electrolytic nickel, nickel corner, hydrazine hydrate, Ultra-fine silver, nano-silver; Thallium sulfate, iodized Thallium sulfate, nickel, copper sulfate, copper chloride, copper oxide, nickel oxide , Lanthanum oxide, oxidation Er, bismuth oxide, bismuth ingots, tin ingots, indium ingot, indium foil, Xinding, zinc powder; SnCl2, sulfate-tin; hydrofluoric acid, white Vaseline, propylene glycol, dichloro Methane, the propylene glycol, triethanolamine, triethanolamine oleic acid soap, chloroform, pyrophosphate copper, Gioia sodium, polyacrylamide, PAC, oleic acid, Glycerol, phosphate and other domestic and imported chemical series.

公司主要经营稀贵金属及电镀金属表面处理、环保污水处理、洗涤清洗原料:硝酸银、硝酸铑、硝酸钯;亚硒酸、二氧化硒、二氧化碲、日本矿业硒粉、三菱硒粉、三井、住友、新兴、德国硒粉;三氧化钼、二甲基甲酰胺;TX-10、NP-9系列、EDTA系列;次亚磷酸钠、硝酸镍、金属铊、铑、钯、铂、铍、铼、锆系列产品;海绵钯;电解镍、镍角、水合肼、特细银粉、纳米银粉;硫酸铊、碘化铊、硫酸镍、硫酸铜、氯化铜、氧化铜、氧化镍、氧化镧、氧化铒、氧化铋、铋锭、锡锭,铟锭、铟箔、锌锭,锌粉;氯化亚锡、硫酸亚锡;氢氟酸、白凡士林、丙二醇,二氯甲烷,二丙二醇,三乙醇胺、三乙醇胺油酸皂、三氯甲烷、焦磷酸铜、焦亚硫酸钠、聚丙烯酰胺、聚合氯化铝、油酸、甘油、磷酸等国产、进口化工系列。

In a similar way, using N,N\'-dibenzyl tartamide as auxiliary,-(2-methyl)allyl-2-chloro-phenyl-methyl azide, a vital intermediate of Repaglinide, can be prepared via asymmetric allylation of o-chlorobenzaldehyde in

产物经氧化和碘加成内酯化反应得到阿伐他汀中间体(3R,5S)-3-羟基-5-碘甲基戊内酯(10);将N-苄基酒石酸二酰胺用于邻氯苯甲醛的不对称烯丙基化反应以较高光学收率得-甲基烯丙基-2-氯苯基-甲基醇

With intermediates 1,ω-hexadecanediol and ω-bromo pentadecanol as starting materials,ω-bromo hexadecanoic acid and ω-bromo octadecanoic acid were prepared in four and seven steps of reactions separately.

分别以1,ω-十五烷二酸和1,ω-十六烷二酸为原料,各经过四步有机反应,制备了ω-碘代十六烷酸及含十四、十五、十六碳原子的ω-溴代直链脂肪酸;再以中间产物15-溴代十五烷醇、1,ω-十六烷二醇为原料,各经过四步、七步有机反应,制备了ω-溴代十六烷酸及ω-溴代十八烷酸。

The second part, we have developed a convenient and highly-regioselective approach to synthesis of trisubstituted iodofurans.

第二部分,我们发展出一个便利且具有高度位向选择性的方法来制备三取代碘化呋喃,由高炔丙基醇可以顺利的得到2,4,5-三取代碘化呋喃。

A ion association complex (maximum absorbance at 550 nm) was formed after the reaction of I-3 and crystal violet to determine DO in water.

连云港金兆水务有限公司,江苏连云港 222005〖摘要〗在碘量法测定水中溶解氧的基础上,利用 I-3与结晶紫在聚乙烯醇存在下结合成电中性的离子缔合物,以碘酸钾为标准溶液,与过量碘化钾反应生成碘,加入结晶紫后在550 nm 处有最大吸收的原理测定水中溶解氧,优化了试验条件,考察了共存离子的干扰。

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