Methods 4-Hydroxy- benzonitrile was treated with sodium hydrogen sulfide and anhydrous magnesium chloride in dimethyl formamide to give thioamide, which was then directly cyclized with ethyl 2-chloroacetoacetate without separation to give ethyl 2-(4-hydroxyphenyl)-4-methylthiazole-5-carboxylate(2) in one-pot; then 2 was formylated with Duff reaction adopting hexamethylenetetramine in trifluoroacetic acid to give ethyl 2-(3-formyl-4-hydroxyphenyl)-4-methylthiazole-5-carboxylate(3); finally, the target compound was obtained by the treatment of 3 with hydroxylamine hydrochloride and sodium formate in formic acid.

采用"一勺燴"方法日韩精品无码区免费专区，以4-羥基苯甲腈為起始原料黄色www，首先與硫氫化鈉和無水氯化鎂在N，N-二甲基甲酰胺中反應(yīng)国产三级a专区在线观看播放，所得中間體不經(jīng)分離男女wwww视频，直接加入2-氯乙酰乙酸乙酯進行環(huán)合反應(yīng)，得到2-(4-羥基)苯基-4-甲基-5-噻唑甲酸乙酯（2）日欧美老女人；然后通過六亞甲基四胺/三氟乙酸進行Duff反應(yīng)欧美性爱精品一级片，得到2-(3-甲酰基-4-羥基)苯基-4-甲基-5-噻唑甲酸乙酯（3）真人版AV黄色网站；再經(jīng)鹽酸羥胺/甲酸/甲酸鈉體系脫水得到目標化合物3及片黄色福利午夜网站。

Major procurement of goods: a three-chlorosilanes, dichloromethane, AE activity ester, 3-iodine Silane, special acid, pentyl chloride, triethylamine, thiadiazole, tetrazolylazo acid, 2 - Acetamide, tetrahydrofuran, the four-guanidine, isopropanol, five phosphorus trichloride, sodium vary bitter, acid, sodium phenylacetate, 6-2 silicon n-amine, Ethylacetoacetate , Methyl isobutyl ketone, potassium dihydrogen phosphate, aluminium oxide, DL methionine, N, N-dimethylaniline, NN-diethyl aniline, 4 sodium EDTA, Anhydrous sodium sulfate, ammonium sulfate, potassium sulfate, sodium acetate, sodium carbonate, DMC, formic acid, sodium chloride medicinal, oxalate, protopine, acetone, alcohol, acetic acid, vinegar Ethyl, butyl acetate, methanol, ethanol (anhydrous, industrial, medicinal), formaldehyde, Ye Jian (30%), hydrochloride (industrial-grade, refined grade, reagent level), sulfate (98%), Ammonia, calcium carbonate, chlorine dioxide, 6 - APA ,7-ACA ,7-ADCA ,7-ANCA, sulbactam, ceftazidime activity ester, Deng salt (hydroxymethyl-K, acid precursors Potassium, sodium dihydrogen methyl), resin, the enzyme, water treatment agent, Xiao Mo agent, demulsifier, flocculants, activated carbon, all kinds of medicinal materials, All kinds of additives

三甲基一氯硅烷、二氯甲烷88黄色视频在线观看、AE活性酯www.猛黄色网站、三甲基碘硅烷、特戊酸亚洲欧美激情综合一区二区、特戊酰氯成人av小姐网站在线观看、三乙胺、噻二唑91在线网站观看、四氮唑乙酸国产一级毛片精品、二甲基乙酰胺、四氫呋喃18岁禁止访问网址、四甲基胍91精品国自产拍在线观看红、異丙醇、五氯化磷日韩精品视频无播放器在线观看免费、異辛酸鈉三级片免费99精品、苯乙酸、苯乙酸鈉人人干人操搞、六甲基二硅胺烷XXXXfreeXXXX高清、乙酰乙酸乙酯、甲基異丁酮鲁鲁鲁www、磷酸二氫鉀人人干人人操人人草人人摸、三氧化二鋁、DL蛋氨酸在线视频观看一区www、N黄色aoo，N-二甲基苯胺、NN-二乙基苯胺哪个网站有偷拍视频、乙二胺四乙酸四鈉色色色色色色色色色色视频、無水硫酸鈉、硫酸銨、硫酸鉀四房色播综合网、醋酸鈉欧洲久久久久久、碳酸鈉、碳酸二甲酯黄色网站视频污污污黄色、甲酸欧美亚操逼、藥用氯化鈉、草酸黄色香蕉一级Av、片堿日本体内she精2╳╳╳、丙酮、正丁醇igao视频官方网站、冰醋酸直接观看黄色网站视频、醋酸乙酯、醋酸丁酯久久产精品一区二区三区污、甲醇欧美作爱牲交a、乙醇、甲醛欧美一极片、液堿（30％）国产激情久久久久影院、鹽酸（工業(yè)級、精制級色色五月天天色、試劑級）免费涩网站、硫酸（98％）、氨水中国乱伦视频、碳酸鈣夜色亚洲精品站、二氧化氯、6－APA色极品A片、7－ACA久久96精品久久久久久、7－ADCA 、7－ANCA18jizz、舒巴坦超碰91自拍、頭孢他啶活性酯、鄧鹽(羥甲基鉀欧洲视频无区无码免费、前體酸鉀、二氫甲基鈉)人人看人人插人人操、樹脂国产黄色二级、生物酶、水處理劑久久综合色区、消沫劑可看黄的网站、破乳劑、絮凝劑、活性碳一级AAAAAA片毛片在线播放、各種藥用輔料黄页在线观看的视频免费、各種添加劑

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，信譽至上黑人久久，團結(jié)合作色色综合天天色，友誼長久"乙二胺；二乙胺另类区图片小说综合；三乙胺黄色网站在线免费下载；二乙烯三胺；三乙烯二胺欧美综合在线观看免费；三乙烯四胺精品乱子伦一一级大毛片；四乙烯五胺；五乙烯六胺国产十八禁网站；己內(nèi)酰胺看黄的网站；二甲基甲酰胺；烯丙基胺免费毛片中文字青岛消防科技公司；N日韩少妇熟女自拍视频网站免费，N二甲基苯胺；正丙胺福利偷拍；正丁胺2012免费观看在线播放；正辛胺；三聚氰胺日本巨大爆乳一级在线观看；1一级黄片二级黄，2丙二胺；一乙醇胺露脸精品一区二区三区；二乙醇胺免费国产牲交视频在线播放；三乙醇胺；碘化鉀79av视频在线观看；氫氧化鉀国产一级精品A片观看视频；高錳酸鉀；甲苯中国性猛交XXXXX免费看；二甲苯久久五月天婷婷综合；對氯甲苯；丙酮亚洲电影免费观看；丁酮国产亚洲一二三；乙酰丙酮；醋酸乙酯精品91；醋酸丁酯在线国产观看；Y-丁內(nèi)酯91av视频第二页；碳酸二甲酯；乙酰乙酸甲酯人人舔人人操人人干；三伏乙酰乙酸黄片啊草；三伏乙酰乙酸乙酯；甲醇国产又大又粗又湿视频；無水乙醇淫逼色操网；異丙醇；丙二醇影音先锋啪啪啪；丙三醇女生自慰喷水在线观看；丙炔醇；1.3丙二醇97福利国产大黄片；木糖醇国产视频黄色；冰醋酸；己醛酸欧美老妇性爱视频在线；巰基乙酸欧美国产亚洲另类；異辛酸；己二酸黄色带国产在线观看；三氟乙酸在线观看无毒岛国黄色网站；乙二酸；對氨基苯乙酸直接看的AV人站免费观看；鄰氯苦杏仁酸又黄又粗黄色视频；DL-扁桃酸；無水哌嗪直播黄片香蕉视频在线免费看；六無哌嗪国产一级无码AV免费下载观看；糠醛；蓖麻油啪啪啪美女国产；乙二醛国产在线真实小视频在线观看；戊二醛；多聚甲醛外国AV在线；異丙醚在线精品亚洲一区二区导航；苯甲醚；四氫吡咯乱人伦中文视频在线香蕉；純吡啶欧洲A片网址；1.2二氯乙烷；二氯甲烷免费偷拍精品视频；三氯甲烷日韩se片；四氯化碳；水合肼欧美tV；壬基酚；純間甲酚；硒酚亚洲欧美自拍第一页；苯酚在线播放免费人成人毛片乱码；對叔丁基苯酚；鈦白粉中文字幕乱码电影免费一二三区；鐵粉欧美一区二区人体；全糖粉；雙酚A黄色网站直接进大全；偶氮二異丁腈暖暖在线视频狼色；疊氮化鈉；碳酸鈉欧美A片网址大全；氯化鈉亚洲日韩色图16p页；三氧化二鐵；氯化亞銅久久九九九；氯化亞砜欧美性爱A视频电影麻豆；D4；碳酸氫鈉久久综合久久艹；氨水操人在线网站；氯化鉀；無水亞硫酸鈉日韩变态福利网站在线观看；過硫酸銨亚洲操在线观看；乙二醇丁醚；乙二醇乙醚十八岁禁看网站；氯化鈣免费看A片网站在线播放；環(huán)己酮；環(huán)己烷色01永久视频；甲基叔丁基醚麻豆一级毛片无码视频；碳酸鉀；三氯化鐵黄色视频制服网站；硝酸鉀欧美日韩国产精品；磷酸三鈉；氧化鋅欧美A片一区二区三区；亞硝酸鈉日韩一级特级视频；氧化銻；酒石酸igao网变成什么网站了；OP-10欧美精选三区；TX-10；粒堿A片ⅴ7v.C；AESgzdaqm.com；苯甲酸鈉色污污网站；檸檬酸鈉；偏硅酸鈉欧美精品三区；過硼酸鈉www.A黄色网站；過碳酸鈉；苯磺酸鈉看黄网站网址免费；亞氯酸鈉欧洲美洲精品一区二区三区；烏洛托品；尿素亚洲一区二区三区羽田爱；鹽酸美国一级黄片的黄色美国的现在能放出来的；硫酸；乳酸狠狠色视频一区二区；氨基磺酸一级黄色视频免费下载观看真人视频；雙氧水；碳酸氫銨

A set of laser monitoring observation system to be used for measure the solubility with a high speed, which is programmed heating apparatus , have designed. The solubility of 1,2-cyclohexanediol were measured in water, methyl acetate, acetic ester, propyl acetate, butyl acetate, methyl acrylate, ethyl acrylate, acetoacetic ester at different temperature.

另外欧美城色色，還建立了一套帶激光監(jiān)視系統(tǒng)男女无遮挡高清性视频APP，可以控制升溫速率的溶解度測定實驗裝置，測定了反式-1麻豆AV在线高清免费播放，2-環(huán)己二醇在水亚洲区综合、乙酸甲酯、乙酸乙酯黄色网页在线免费看。、乙酸丙酯日韩系列在线精品视频观看网站、乙酸丁酯、乙酰乙酸乙酯WWWaⅤ、丙烯酸甲酯午夜5060国产一级A片、丙烯酸乙酯和甲基丙基酮等9個二元體系中的溶解度。

objective to determine the contents of residual acetone in acetoacetic ester,the raw material for the synthesis of edaravone, by gas chromatography.methods sample solution was injected on a gdx column (0.18 mm～0.25 mm) with nitrogen as the carrier gas.the residue was calculated by the external standard method.results the linearity was good over the range of 25 μg/ml～400 μg/ml,with the correlation coefficient of acetone being 0.996 and the average recovery 96.8%.conclusions the method was proved to be simple,rapid,practical and highly sensitive.it is an efficient method for the quality control of acetoacetic ester.

摘要］ 目的：用氣相色譜法測定依達拉奉合成起始原料乙酰乙酸乙酯中丙酮的殘留量99久久久精品免费人妖。方法：采用固定相為二乙烯苯乙基乙烯苯型高分子多孔小球（直徑為0.18 mm～0.25 mm）97在线视频免费播放，氮氣為載氣，用外標法測定乙酰乙酸乙酯中殘留丙酮的含量aaa日欧美女。結(jié)果：該方法在丙酮濃度范圍在25 μg/ml～400 μg/ml內(nèi)呈良好的線性關(guān)系亚洲日韩欧美性爱在线，響應(yīng)曲線相關(guān)系數(shù)為0.996，平均回收率為96.8%日本ā片免费观看网站。結(jié)論：本法簡便亚洲四区欧美四区二区三区，快速、實用精品欧美一区二区不卡视频，靈敏度高谁有黄色网址，可有效地用于乙酰乙酸乙酯的質(zhì)量控制。

Objective To determine the contents of residual acetone in acetoacetic ester,the raw material for the synthesis of Edaravone, by gas chromatography.Methods Sample solution was injected on a GDX column (0.18 mm～0.25 mm) with nitrogen as the carrier gas.The residue was calculated by the external standard method.

摘要］ 目的：用氣相色譜法測定依達拉奉合成起始原料乙酰乙酸乙酯中丙酮的殘留量方法：采用固定相二乙烯苯乙基乙烯苯型高分子孔小球（直徑為0.18 mm～0.25 mm）国产qv，氮氣為載氣欧美一区二区黄色网站，用外標法測定乙酰乙酸乙酯中殘留丙酮的含量视频偷拍网。

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，信譽至上黑人与人妻无码中文字幕，團結(jié)合作免费又粗又长又爽又黄，友誼長久&乙二胺；二乙胺入室迷奷系列视频国产；三乙胺；二乙烯三胺欧洲一级毛片；三乙烯二胺亚洲人成人一二区在线观看；三乙烯四胺一区二区免费看的黄色片子；四乙烯五胺；五乙烯六胺羞羞AV漫画在线漫画网免费福利；己內(nèi)酰胺；二甲基甲酰胺黄色工厂-这里都是精品；烯丙基胺嗯啊青草操；N，N二甲基苯胺曰韩一级A片欧美一级A片；正丙胺一本在线无码视频免费；正丁胺；正辛胺亞洲精選精品黃色視頻；三聚氰胺99伦乱视频；1，2丙二胺911视频黄色；一乙醇胺激情五月丁香婷婷；二乙醇胺；三乙醇胺国產特黃特粗又長A片；碘化鉀h片在线观看视频免费播放；氫氧化鉀；高錳酸鉀男人晚上天堂黄色网站；甲苯97人妻a；二甲苯；對氯甲苯欧洲一级爆干；丙酮91原创国产在线；丁酮；乙酰丙酮韩av.com；醋酸乙酯自拍偷拍欧美综合；醋酸丁酯；Y-丁內(nèi)酯3344300部；碳酸二甲酯婷婷综合一区；乙酰乙酸甲酯免费看黄色一级片网站；三伏乙酰乙酸；三伏乙酰乙酸乙酯色妞一二三区在线观看；甲醇欧美熟妇爱大黑吊性爱视频；無水乙醇；異丙醇日韩毛片无码一区二区；丙二醇狼狼国产欧美在线视频；丙三醇；丙炔醇久久久久国产精品视频；1.3丙二醇欧美强奸伦乱片；木糖醇；冰醋酸羞羞的漫画官网；己醛酸国产第一页国产精品；巰基乙酸；異辛酸学生妹人人摸人人操；己二酸三级片黄色A片在线免费观看一区；三氟乙酸；乙二酸91超碰在线中出；對氨基苯乙酸日本高潮视频；鄰氯苦杏仁酸；DL-扁桃酸色7788；無水哌嗪又黄又硬又爽的网站；六無哌嗪；糠醛少妇人妻综合久久中文；蓖麻油xxⅹ,com；乙二醛；戊二醛国产91av网站手机免费在线播放；多聚甲醛日韩无码黄色视频；異丙醚；苯甲醚每日国产在线观看论坛AV；四氫吡咯十二黄片国产在线视频；純吡啶；1.2二氯乙烷人人曰人人澡；二氯甲烷免费精品男女视频；三氯甲烷；四氯化碳AV女同免费一区二区三区在线；水合肼伊人色综合狠狠热AV电影；壬基酚；純間甲酚；硒酚国产精品香港三级国产50；苯酚欧美一级A片永久免费无蔗挡；對叔丁基苯酚；鈦白粉国产AV日产AV；鐵粉97精品视频共享总站；全糖粉；雙酚A欧美激情片在线观看；偶氮二異丁腈日韩福利国内主播在线观看；疊氮化鈉；碳酸鈉重口味人人操人人摸；氯化鈉一级免费视频网站在线观看视频；三氧化二鐵；氯化亞銅wwwavv；氯化亞砜；D4一级a片2018；碳酸氫鈉久久久极品精品；氨水；氯化鉀女生扒开腿让男人捅出白浆的动态图；無水亞硫酸鈉91上海人妻系列网站；過硫酸銨；乙二醇丁醚国产在线精品一区二区中文；乙二醇乙醚三级片毛片AV网站；氯化鈣；環(huán)己酮国产A片免费高清2018；環(huán)己烷欧美精品可乐视频；甲基叔丁基醚；碳酸鉀国产黄片免费在线播放；三氯化鐵欧美三级A片视频；硝酸鉀；磷酸三鈉欧美性爱亚洲日韩；氧化鋅午夜激情毛片在线播放；亞硝酸鈉；氧化銻三级日本在线看；酒石酸日韩最新在线观看网址；OP-10；TX-10日韩三级片大全；粒堿91精品免费；AES；苯甲酸鈉国产黄色网站A；檸檬酸鈉欧洲自拍；偏硅酸鈉亚洲中文字幕超碰97；過硼酸鈉；過碳酸鈉99精品视频全部免费观；苯磺酸鈉黄色网站免费a；亞氯酸鈉；烏洛托品亚洲美女A视频；尿素九九手机在线视频；鹽酸；硫酸强奸在线第一页；乳酸欧美性荡视频；氨基磺酸；雙氧水被干爽死黄色视频；碳酸氫銨

Methods 4-Hydroxy- benzonitrile was treated with sodium hydrogen sulfide and anhydrous magnesium chloride in dimethyl formamide to give thioamide, which was then directly cyclized with ethyl 2-chloroacetoacetate without separation to give ethyl 2-(4-hydroxyphenyl)-4-methylthiazole-5-carboxylate(2) in one-pot; then 2 was formylated with Duff reaction adopting hexamethylenetetramine in trifluoroacetic acid to give ethyl 2-(3-formyl-4-hydroxyphenyl)-4-methylthiazole-5-carboxylate(3); finally, the target compound was obtained by the treatment of 3 with hydroxylamine hydrochloride and sodium formate in formic acid.

采用&一勺燴&方法日韩在线视频台湾，以4-羥基苯甲腈為起始原料，首先與硫氫化鈉和無水氯化鎂在N怎么免费查找黄色网站网址，N-二甲基甲酰胺中反應(yīng)爱搞网，所得中間體不經(jīng)分離，直接加入2-氯乙酰乙酸乙酯進行環(huán)合反應(yīng)久久三区，得到2-(4-羥基)苯基-4-甲基-5-噻唑甲酸乙酯（2）明星黄色视频在线；然后通過六亞甲基四胺/三氟乙酸進行Duff反應(yīng)，得到2-(3-甲跖访繟片黄片视频；?4-羥基)苯基-4-甲基-5-噻唑甲酸乙酯（3）91做a免费视频；再經(jīng)鹽酸羥胺/甲酸/甲酸鈉體系脫水得到目標化合物。

Base played a crucial role in this reaction: in the Pd2/L1 catalyzed α-arylation of ethyl malonate, K3PO4 is the base of choice; in the α-arylation of ethyl acetoacetate, K2CO3 is the most effective base.

在這類催化反應(yīng)中国产毛片小视频，堿的選擇具有重要的影響：以K3PO4為堿视频一区二区红樱桃网站， Pd2/L1催化體系在丙二酸二乙酯的α-芳基化中，富電子溴代芳烴顯示較好的活性日韩视频05； Pd2/L1催化的乙酰乙酸乙酯α-芳基化時精品人人，以 K2CO3為堿，催化體系顯示較好的活性yy6080新觉伦AA午夜视频伊人，這個催化體系可控制反應(yīng)得到α-芳基乙酰乙酸乙酯欧美a日本在线一，而不是脫乙酰基的產(chǎn)物A片AA。

Base played a crucial role in this reaction: in the Pd2/L1 catalyzed α-arylation of ethy malonate, K3PO4 is the base of choice; in the α-arylation of ethyl acetoacetate, K2CO3 is the most effectiv base.

在這類催化反應(yīng)中91网免费在线观看，堿的選擇具有重要的影響：以K3PO4為堿，Pd2/L1催化體系在丙二酸二乙酯的α-芳基化中在线观看自拍日韩欧美视频网站大全，富電子溴代芳烴顯示較好的活性欧美一级性交网站；Pd2/L1催化的乙酰乙酸乙酯α-芳基化時，以K2CO3為堿，催化體系顯示較好的活性91AV在线观看免费视频，這個催化體系可控制反應(yīng)得到α-芳基乙酰乙酸乙酯国产美女网站在线观看，而不是脫乙酰基的產(chǎn)物大尺度久草。

acetoacetate：乙酰乙酸鹽

acetoacetanilide 乙酰乙酰苯胺 | acetoacetate 乙酰乙酸鹽 | acetoacetic acid 乙酰乙酸

acetoacetate：乙酰乙酸酯;乙酰乙酸鹽

acetocarmine 醋酸胭脂紅 | acetoacetate 乙酰乙酸酯;乙酰乙酸鹽 | acetoacetate decarboxylase 乙酰乙酸脫羧酶

acetoacetate decarboxylase：乙酰乙酸脫羧酶

acetocarmine 醋酸胭脂紅 | acetoacetate 乙酰乙酸酯;乙酰乙酸鹽 | acetoacetate decarboxylase 乙酰乙酸脫羧酶

acetoacetic acid：乙酰乙酸;乙酰醋酸

acetin method 乙酸酯法;醋精法[甘油定量方法] | acetoacetic acid 乙酰乙酸;乙酰醋酸 | acetobutyryl cellulose 乙(酸)丁(酸)纖維素

acetoacetic acid：乙酰乙酸,乙酰醋酸,丁間酮酸

acetoacetate | 乙酰乙酸 | acetoacetic acid | 乙酰乙酸,乙酰醋酸,丁間酮酸 | acetoacetic ester synthesis | 乙酰乙酸酯合成

acetoacetic ester：乙酰乙酸酯

acetoacetic acid 乙酰乙酸 | acetoacetic ester 乙酰乙酸酯 | acetoacetic ether 乙酰乙酸乙酯

acetoacetic ester：乙酰乙酸(乙)酯

acetoacetic acid 乙酰乙酸 | acetoacetic ester 乙酰乙酸(乙)酯 | acetoacetyl-acyl carrier protein 乙酰乙酰-酰基載體蛋白

ethyl acetoacetic acid：乙基乙酰乙酸

ethyl acetoacetate 乙酰乙酸乙酯 | ethyl acetoacetic acid 乙基乙酰乙酸 | ethyl acetoacetic ester 乙基乙酰乙酸酯

diacetic ester; ethyl acetoacetate：乙酰乙酸乙酯

乙酰乙酸 diacetic acid; acetoacetic acid | 乙酰乙酸乙酯 diacetic ester; ethyl acetoacetate | 二乙酸甘油酯;甘油二乙酸酯;二乙酰甘油 diacetin; diacetylglycine

acetoacetic acid amides：乙酰乙酸氨化物

acetoacetic acid 乙酰乙酸 | acetoacetic acid amides 乙酰乙酸氨化物 | acetoacetic acid ester 乙酰乙酸酯