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苯甲基

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In our research on study chemical reaction of active methylene compounds and brom-acetophenone. Because of brom-acetophenone is compound that contain carbonyl and halogen ,which will take place electrophilic substitution and nucleophilic addition. When active methylene compounds are ethyl acetoacetate and β-diketone, controlling reaction condition, we have found that mono-substitution's production and di-substitution's. production is isolated; active methylene compounds are acetoacetanilide and acetoacetanilide derivate, pyrrolidin-2-one derivants were obtained by substitution and close-ring reaction .but there is no report about it.

本文是让活泼亚甲基类化合物与溴代苯乙酮发生化学反应,由于溴代苯乙酮是含有羰基的卤代烃结构,它可以发生亲电取代和亲核加成反应,当活泼亚甲基类化合物为乙酰乙酸乙酯和β-二酮时,控制反应条件可以发生单取代和双取代两种产物;当活泼亚甲基类化合物为乙酰乙酰芳胺类化合物来反应时,溴代苯乙酮中的羰基与氨基会发生分子内的关环反应生成吡咯烷-2-酮衍生物,这在以前的研究中是没有发现的。

Three formyl group functional cross-linking polystyrene resins of p -formylphenoxymethyl, p -formyl-2-methoxphenoxymethyl,and p -formyl-3-methoxphenoxymethyl were facilely and rapidly synthesized from Merrifield resin under phase transfer catalytic condition coupling with microwave irradiation in a domestic microwave oven.

以Merrifield树脂为原料,家用微波炉为反应装置,在微波照射的相转移催化条件下,简便快速地合成了3种甲酰基功能化的交联聚苯乙烯树脂——对甲酰基苯氧基甲基树脂、对甲酰基-2-甲氧基苯氧基甲基树脂和对甲酰基-3-甲氧基苯氧基甲基树脂。

Three formyl group functional cross-linking polystyrene resins of methoxphenoxymethyl, and p-formyl-3-methoxphenoxymethyl were facilely and p-formylphenoxymethyl, p-formyl-2-rapidly synthesized from Merrifield resin under phase transfer catalytic condition coupling with microwave irradiation in a domestic microwave oven.

以Merrifield树脂为原料,家用微波炉为反应装置,在微波照射的相转移催化条件下,简便快速地合成了3种甲酰基功能化的交联聚苯乙烯树脂--对甲酰基苯氧基甲基树脂、对甲酰基-2-甲氧基苯氧基甲基树脂和对甲酰基-3-甲氧基苯氧基甲基树脂。

Mission:"equality and mutual benefit, reputation first, unity and cooperation and friendship between the long-term" supply products: ethylenediamine; diethylamide; triethylamine; Diethylenetriamine; three ethylene diamine; three ethylene amines 40; 40 Five ethylene amines; five ethylene amines 6; caprolactam; DMF; allyl amine; N, N dimethylaniline; propylamine; are butylamine; are TOA; 3 Poly Cyanamide; 1,2 c diamine; ethanolamine; diethanolamine, triethanolamine; potassium iodide, potassium hydroxide, potassium permanganate, toluene, xylene, toluene of chlorine ; Acetone, butanone; acetylacetone; ethyl acetate, butyl acetate; Y-butyrolactone; DMC; acetyl of methyl acetate; Sanfu acetyl acid; Sanfu acetyl B Ethyl; methanol, ethanol, isopropanol; propylene glycol; glycerol; propargyl alcohol; 1.3 propylene glycol; xylitol; acetic acid; have acid; mercaptoacetic acid; vary Bitterness; adipic acid; trifluoroacetic acid; oxalic acid, the amino acid; o-amygdalin acid; DL-Acid; anhydrous piperazine; six non-piperazine, furfural, castor oil, ethylene Aldehyde; glutaraldehyde, multi-POM; isopropyl ether; anisole; tetrahydropyrrole; pure pyridine; 1.2 dichloroethane; methylene chloride, chloroform, carbon tetrachloride; hydrazine hydrate; Nonylphenol;-m-cresol; Se phenol; phenol; the tert-butyl phenol; Titanium Dioxide; iron; full Tangfen; Bisphenol A; azo two different nitrile; sodium azide; sodium carbonate ; Sodium chloride; iron oxide; cuprous chloride; thionyl chloride; D4; sodium bicarbonate; ammonia, potassium chloride; anhydrous sodium sulphite; ammonium persulfate; glycol Dingmi; B Glycol ether; calcium chloride; cyclohexanone; cyclohexane, methyl tertiary butyl ether, potassium carbonate, ferric chloride, potassium nitrate; Linsuansanna; zinc oxide; sodium nitrite; antimony oxide; Tartrate; OP-10; TX-10; tablets base; AES; sodium benzoate, sodium citrate; partial sodium silicate, sodium perborate, a sodium carbonate, sodium benzene; Asia sodium chlorate; Wuluo Care products; urea; hydrochloric acid, sulfuric acid, lactic acid; amino acid, hydrogen peroxide, ammonium bicarbonate

公司宗旨:"平等互利,信誉至上,团结合作,友谊长久"乙二胺;二乙胺;三乙胺;二乙烯三胺;三乙烯二胺;三乙烯四胺;四乙烯五胺;五乙烯六胺;己内酰胺;二甲基甲酰胺;烯丙基胺;N,N二甲基苯胺;正丙胺;正丁胺;正辛胺;三聚氰胺;1,2丙二胺;一乙醇胺;二乙醇胺;三乙醇胺;碘化钾;氢氧化钾;高锰酸钾;甲苯;二甲苯;对氯甲苯;丙酮;丁酮;乙酰丙酮;醋酸乙酯;醋酸丁酯;Y-丁内酯;碳酸二甲酯;乙酰乙酸甲酯;三伏乙酰乙酸;三伏乙酰乙酸乙酯;甲醇;无水乙醇;异丙醇;丙二醇;丙三醇;丙炔醇;1.3丙二醇;木糖醇;冰醋酸;己醛酸;巯基乙酸;异辛酸;己二酸;三氟乙酸;乙二酸;对氨基苯乙酸;邻氯苦杏仁酸;DL-扁桃酸;无水哌嗪;六无哌嗪;糠醛;蓖麻油;乙二醛;戊二醛;多聚甲醛;异丙醚;苯甲醚;四氢吡咯;纯吡啶;1.2二氯乙烷;二氯甲烷;三氯甲烷;四氯化碳;水合肼;壬基酚;纯间甲酚;硒酚;苯酚;对叔丁基苯酚;钛白粉;铁粉;全糖粉;双酚A;偶氮二异丁腈;叠氮化钠;碳酸钠;氯化钠;三氧化二铁;氯化亚铜;氯化亚砜;D4;碳酸氢钠;氨水;氯化钾;无水亚硫酸钠;过硫酸铵;乙二醇丁醚;乙二醇乙醚;氯化钙;环己酮;环己烷;甲基叔丁基醚;碳酸钾;三氯化铁;硝酸钾;磷酸三钠;氧化锌;亚硝酸钠;氧化锑;酒石酸;OP-10;TX-10;粒碱;AES;苯甲酸钠;柠檬酸钠;偏硅酸钠;过硼酸钠;过碳酸钠;苯磺酸钠;亚氯酸钠;乌洛托品;尿素;盐酸;硫酸;乳酸;氨基磺酸;双氧水;碳酸氢铵

Water,butylene glycol,biosaccharide gum-1,ppg-26-buteth-26,panthenol,peg-40 hydrogenated caster oil,hydroxyethylcellulose,imidazolidinyl urea,saccharide isomerate,benzophenone-4,phenoxyethanol,triethanolamine,citrus aurantium dulcisoil,pentadecalactone,methylparaben,sodium hyaluronate,citric acid,butylparaben,ethylparaben,citrus aurantium amaraoil,propylparaben,methylchloroisothiazolinone,methylisothiazolinone,red 4,yellow 5,red 33,limonene,linalool

水,丁二醇,多醣物质,PPG-26-丁醇聚醚-26,维生素B5,PEG-40氢化蓖麻油,羟乙基纤维素,尿素醛,天然异构寡糖,二苯甲酮- 4,苯氧乙醇,三乙醇胺,甜橙油,环十五内酯,羟苯甲酯,透明质酸钠,柠檬酸,羟苯丁酯,羟苯乙酯,苦橙油,羟苯丙酯,甲基氯异塞唑晽酮,甲基异噻唑啉酮,红4,黄5,红33,柠檬精油,芳樟醇

Five Butenafine's analogues were designed and synthesized according to the structure-activity relationship and operating mechanism of benzylamine antimycotics.

根据苄胺类抗真菌化合物的构效关系、作用机理,设计合成了 5个布替萘芬类似物,N (2 氯 5 吡啶甲基) N 甲基 1 萘甲胺,N ,N 二(4 叔丁基苄基) 1 萘甲胺,N (4 叔丁基苄基) N (2 氯 5 吡啶甲基) 1 萘甲胺,N ,N 二苄基 4 叔丁基苯甲胺,N (2 氯 5 吡啶甲基) N 苄基 4 叔丁基苯甲胺。

Benzylidene[1,3-bis(2,6-dimethylphenyl)-4,5-dihydroimidazol-2-ylidene]dichloro(2-methylpyridine)ruthenium (62), benzylidene[1,3-bis(2,6-dimethylphenyl)-4,5-dihydroimidazol-2-ylidene] dichloro(2,4-dimethylpyridine)ruthen ium (63) introduce ortho substituted pyridine as dissociating ligand to weaken Ru-N bondand accelerate dissociation of pyridine derivative ligand through steric hindrance.

在钌卡宾配合物[1,3-二-(2,6-二甲苯基)-4,5-二氢咪唑基]-苯亚甲基-(2-甲基吡啶)-二氯合钌(62),1,3-二-(2,6-二甲苯基)-4,5-二氢咪唑基1-苯亚甲基-(2,4-二甲基吡啶)-二氯合钌(63)中,邻位取代的吡啶作为解离配体,通过邻位基团的空间效应削弱钌-氮配位键,使配体更易解离,提高了催化剂的初活性。

Mission:"equality and mutual benefit, reputation first, unity and cooperation and friendship between the long-term" supply products: ethylenediamine; diethylamide; triethylamine; Diethylenetriamine; three ethylene diamine; three ethylene amines 40; 40 Five ethylene amines; five ethylene amines 6; caprolactam; DMF; allyl amine; N, N dimethylaniline; propylamine; are butylamine; are TOA; 3 Poly Cyanamide; 1,2 c diamine; ethanolamine; diethanolamine, triethanolamine; potassium iodide, potassium hydroxide, potassium permanganate, toluene, xylene, toluene of chlorine ; Acetone, butanone; acetylacetone; ethyl acetate, butyl acetate; Y-butyrolactone; DMC; acetyl of methyl acetate; Sanfu acetyl acid; Sanfu acetyl B Ethyl; methanol, ethanol, isopropanol; propylene glycol; glycerol; propargyl alcohol; 1.3 propylene glycol; xylitol; acetic acid; have acid; mercaptoacetic acid; vary Bitterness; adipic acid; trifluoroacetic acid; oxalic acid, the amino acid; o-amygdalin acid; DL-Acid; anhydrous piperazine; six non-piperazine, furfural, castor oil, ethylene Aldehyde; glutaraldehyde, multi-POM; isopropyl ether; anisole; tetrahydropyrrole; pure pyridine; 1.2 dichloroethane; methylene chloride, chloroform, carbon tetrachloride; hydrazine hydrate; Nonylphenol;-m-cresol; Se phenol; phenol; the tert-butyl phenol; Titanium Dioxide; iron; full Tangfen; Bisphenol A; azo two different nitrile; sodium azide; sodium carbonate ; Sodium chloride; iron oxide; cuprous chloride; thionyl chloride; D4; sodium bicarbonate; ammonia, potassium chloride; anhydrous sodium sulphite; ammonium persulfate; glycol Dingmi; B Glycol ether; calcium chloride; cyclohexanone; cyclohexane, methyl tertiary butyl ether, potassium carbonate, ferric chloride, potassium nitrate; Linsuansanna; zinc oxide; sodium nitrite; antimony oxide; Tartrate; OP-10; TX-10; tablets base; AES; sodium benzoate, sodium citrate; partial sodium silicate, sodium perborate, a sodium carbonate, sodium benzene; Asia sodium chlorate; Wuluo Care products; urea; hydrochloric acid, sulfuric acid, lactic acid; amino acid, hydrogen peroxide, ammonium bicarbonate

公司宗旨:&平等互利,信誉至上,团结合作,友谊长久&乙二胺;二乙胺;三乙胺;二乙烯三胺;三乙烯二胺;三乙烯四胺;四乙烯五胺;五乙烯六胺;己内酰胺;二甲基甲酰胺;烯丙基胺;N,N二甲基苯胺;正丙胺;正丁胺;正辛胺;三聚氰胺;1,2丙二胺;一乙醇胺;二乙醇胺;三乙醇胺;碘化钾;氢氧化钾;高锰酸钾;甲苯;二甲苯;对氯甲苯;丙酮;丁酮;乙酰丙酮;醋酸乙酯;醋酸丁酯;Y-丁内酯;碳酸二甲酯;乙酰乙酸甲酯;三伏乙酰乙酸;三伏乙酰乙酸乙酯;甲醇;无水乙醇;异丙醇;丙二醇;丙三醇;丙炔醇;1.3丙二醇;木糖醇;冰醋酸;己醛酸;巯基乙酸;异辛酸;己二酸;三氟乙酸;乙二酸;对氨基苯乙酸;邻氯苦杏仁酸;DL-扁桃酸;无水哌嗪;六无哌嗪;糠醛;蓖麻油;乙二醛;戊二醛;多聚甲醛;异丙醚;苯甲醚;四氢吡咯;纯吡啶;1.2二氯乙烷;二氯甲烷;三氯甲烷;四氯化碳;水合肼;壬基酚;纯间甲酚;硒酚;苯酚;对叔丁基苯酚;钛白粉;铁粉;全糖粉;双酚A;偶氮二异丁腈;叠氮化钠;碳酸钠;氯化钠;三氧化二铁;氯化亚铜;氯化亚砜;D4;碳酸氢钠;氨水;氯化钾;无水亚硫酸钠;过硫酸铵;乙二醇丁醚;乙二醇乙醚;氯化钙;环己酮;环己烷;甲基叔丁基醚;碳酸钾;三氯化铁;硝酸钾;磷酸三钠;氧化锌;亚硝酸钠;氧化锑;酒石酸;OP-10;TX-10;粒碱;AES;苯甲酸钠;柠檬酸钠;偏硅酸钠;过硼酸钠;过碳酸钠;苯磺酸钠;亚氯酸钠;乌洛托品;尿素;盐酸;硫酸;乳酸;氨基磺酸;双氧水;碳酸氢铵

According to the statistics of the content of methyldibenzothiophenes in 112 oil samples from China, the conter of methyldibenzothiophenes in marine oil is more than that in terrestrial oil if there is no TSR in oil.

根据对中国含油气盆地112个原油样品中似甲基二苯并噻吩含量统计发现,当原油无TSR作用时,海相原油的似甲基二苯并噻吩含量要大于陆相原油;陆相原油中,盐湖相原油的似甲基二苯并噻吩含量又大于淡水湖相。

By further comparing the retention time of the profounds and that of the impurities,the main impurities in triadimefon technical was conformed as following:First, 1-(4-bromophenoxy)-3,3-dimethyl-1 -(1H-1,2,4-triazol-1 -yl)-2-butanone;Second, 1-(2,4-dichlorophenoxy)-3,3-dimethyl-1 -(1H-1,2,4-triazol-1 -yl)-2-butanone;Third, 1,1 -bis(4-chlorophenoxy)-3,3 -dimethy 1-2-butanoneour conclusion is conformed right.

再经过化合物的保留时间与杂质保留时间的比照,证实了三唑酮原药中的主要杂质是:杂质Ⅰ:1-(4-溴苯氧基)-3,3-二甲基-1-(1H-1,2,4-三氮唑-1-基)-2-丁酮;杂质Ⅱ:1-(2,4-二氯苯氧基)-3,3-二甲基-1-(1H-1,2,4-三氮唑-1-基)-2-丁酮;杂质Ⅲ:1,1-二(4-氯苯氧基)-3,3-二甲基-2-丁酮。

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推荐网络例句

Now, however, all children continue in "comprehensive" schools, and the eleven-plus determines which courses of study the child will follow.

然而现在,所有的孩子都要在综合学校继续学习,所以这次考试只是决定他们将要学习哪些课程。

Cultivatable land , and led to a general recognition that development must not be carried at the cost of agriculture .

城区的迅速扩大在很多情况下侵占了宝贵的可耕地,使人们普遍认识到发展不能以牺牲农业为代价。

Detailed Intrinsic Reaction Coordination calculations were carried out to guarantee the optimized transition-state structures being connected to the related tautomers.

同时,做了详尽的内禀反应坐标计算,以保证所得到的过渡态连接相应的始末异构体。