苯偶姻,benzoin
1)benzoin[英]['benz?uin][美]['b?nzo?n]苯偶姻
1.Catalytic oxidation of benzoin to benzil by molecular oxygen using metal oxide supported on activated charcol, silcon oxide, activated aluminum oxide and obsorbe resin as catalyst at atmosphere pressure was studied.考察了几种常用载体负载金属氧化物催化分子氧氧化苯偶姻制备苯偶酰的性能 ,发现氧化铁 /三氧化二铝催化活性较高 ,稳定性较好 。
2.dihydro-2,3-diphenyl-1,4-dioxene and 5,6-dihydro-2,3-diphenyl-1,4-oxathiin were synthesized by the reaction of benzoin with ethylene glycol or 2-mercaptoethanol under microwave irradiation.用微波辐照方法研究了苯偶姻与乙二醇或巯基乙醇在酸催化下的缩合反应 。
3.Dry oxidation of benzoin with air under microwave irradiation gave benzil in excellent yield.研究了微波辐射下干法氧化苯偶姻生成苯偶酰的反应。
英文短句/例句

1.benzoin acetate苯偶姻乙酸酯,乙酰苯偶姻
2.Synthesis of Benzoin Acetate with Anhydrous Potassiuim Carbonate as Catalyst无水K_2CO_3催化合成苯偶姻乙酸酯
3.A Novel Synthesis of Benzoin Catalyzed by Thiazolium Salts苯甲醛安息香缩合反应催化合成苯偶姻新方法
4.Other fixatives which may be used include the oleoresins such as benzoin, or styrax.其他可用的固定剂有苯偶姻或安息香等含油树脂。
5.Synthesis of a Novel Chiral Imidazolium Salt, Preparation of Imidazolium Based Ionic Liquids and Their Application in Catalytic Benzoin Condensations;新型手性咪唑鎓盐的合成和咪唑鎓盐离子液体的制备及催化苯偶姻缩合反应
6.diphenylamino-azo-m-benzene sulfonic acid二苯胺偶氮间苯磺酸
7.sodium para-diphenylaminoazobenzene sulfonate对二苯胺偶氮苯磺酸钠
8.para-aminoazobenzene hydrochloride对氨基偶氮苯盐酸盐
9.3,3' -dimethylbenzidiniun dichloride3,3' -二氯化二甲基苯偶酰
10.parahydroxyazobenzene-parasulfonic acid对羟基偶氮苯对磺酸
11.hydrinde azo dyes茚满偶氮染料,苯并茂偶氮染料
12.Make one of the partners in a marriage stop loving the other使婚姻中的一个伴侣停止爱其配偶
13.Make one of the partner in a marriage stop loving the other.使婚姻中的一个伴侣停止爱其配偶。
14.What is the best way to keep your spouse happy in the marriage?在婚姻中保持配偶幸福的最好方法是什么?
15.Which of the following is your marital status, single, married, divorced or widowed?下列何者是你的婚姻状态,未婚、已婚、离婚或丧偶?
16.Domain-specificity of Long-term Mate Preference among Chinese Young Females;中国青年女性婚姻择偶的领域特殊性研究
17.Research on Enantioselective Benzoin Condensations Using N-heterocyclic Carbenes;手性N-杂环卡宾催化不对称偶姻缩合研究进展
18.Study on synthesizing the arylacyloin by using Vatimin B1 injection as the catalyst;维生素B_1注射液催化合成芳偶姻的研究
相关短句/例句

benzoins苯偶姻
1.The oxidation of benzoins with methylammonium chlorochromate adsorbed on silica gel;氯铬酸甲铵/硅胶对苯偶姻的氧化研究
2.Preparation of Trimethylammonium Chlorochromate Adsorbed on Silica Gel and Its Use in Oxidation of Benzoins;盐酸三甲胺三氧化铬/硅胶载体试剂的制备及其对苯偶姻体系的氧化
3.A new reagent, trimethylammonium chlorochromate adsorbed on alumina , was described as a convenient reagent for the oxidation of alcohols and benzoins .本文报道了氯铬酸三甲铵/氧化铝的制备方法及其对醇和苯偶姻类化合物的氧化反应。
3)benzoin oxime苯偶姻肟
4)benzoin blue苯偶姻蓝
5)benzoin brown苯偶姻棕
6)benzoin phenylhydrazone苯偶姻苯腙
延伸阅读

苯偶姻分子式:C14H12O2分子量:212.22CAS号:579-44-2性质:白色或淡黄色棱柱体结晶。熔点133℃,沸点344℃(102.4kPa),194℃(1.6kPa),相对密度1.310(20/4℃)。不溶于冷水,微溶于热水和乙醚,溶于乙醇。可还原费林氏液,与浓硫酸作用生成联苯酰。在乙醇中与钠汞齐作用生成氢化苯偶酰。在250℃时与氢碘酸作用生成联苯酰。制备方法:苯甲醛在热氰化钾或氰化钠的乙醇溶液中反应,即可生成苯偶姻。氰离子在反应中为一特殊催化剂,多数芳香醛均可进行此反应,因其相当于两分子醛缩合,该反应称为安息香缩合。将两种不同的醛混合在一起进行安息香缩合,可以得到混合的安息香。将苯甲醛、乙醇混合,用氢氧化钠溶液调节pH值至7-8,加入3%的氰化钠溶液,在75-80℃回流0.5h,降温至10℃以下过滤,滤饼洗至无氰根即得苯偶姻,收率90%以上。用途:有机合成原料,用于制联苯甲酰等;医药工业用于生产抗癫痫药苯妥英纳、抗胆碱药胃复康和安胃灵。也可用于染料生产。苯偶姻醚类可用作感光性树脂的光增感剂、照相凹版油墨、光固化型涂料。最近又用于速干性涂料。主要是:苯偶姻异丙醚为白色或浅黄褐色粉末,熔点77-81℃。苯偶姻乙醚为白色粉末,熔点56℃以上。苯偶姻异丁醚(Benzoin isobutyl ether)国际市场上90%纯度的商品沸点133℃(66.7Pa),相对密度0.985(20/4℃),折光率1.5485。作为光增感剂,在性能方面以乙醚最佳,其次为异丙醚和异丁醚,产品的稳定性以异丁醚为最佳。