The processes for preparation of tribenuron-methyl and its key intermediates were reviewed. Comparing the yield, quality, cost, safety and environmental protection and other aspects, the best production process of tribenuron-methyl is to use the methyl 2-benzoate and sodium cyanate as raw materials.

綜述了苯磺隆及其關鍵中間體的主要生產工藝WWW性com，并對各生產工藝在收率、質量菠萝在线成人网站免费观看网址大全、成本黄色视频在线播视频观看免费、安全環(huán)保等方面進行了比較和評價，指出了以鄰甲酸甲酯苯磺酰氯XⅩXX干逼、乙腈和氰酸鈉為原料的工藝是苯磺隆的最佳生產工藝最近2019年在线中文字幕大全。

The reducing-coupling reaction of benzoyl chloride under Dy/n-BuBr was complex. Besides diphenyl diketone, benzoin and ring-opening product of THF were also obtained.

苯甲酰氯在Dy/n-BuBr作用下的還原偶聯(lián)反應較為復雜，除得到二苯基乙二酮外久久亚洲国产中精品文字，還得到四氫呋喃開環(huán)產物以及安息香jlzz大全高潮多水老师。

From 3-chloropropene bycondensation with sodium ethylate in ethanol to form 3-ethoxypropene followed by anti-Markovnikov addition with HBr inthe presence of benzoyl peroxide.

3-氯丙烯與乙醇鈉在乙醇中回流制得3-乙氧基丙烯，繼而在過氧苯甲酰存在下淫荡少妇一级性爱视频，與溴化氫經反馬氏加成制得1-溴-3-乙氧基丙烷一级特黄aa毛片大片在线，總收率89。

We studied the effect of water on the palladium acetate-catalyzed coupling reaction of aryl boronic acid with aryl bromide or acyl chloride in ionic liquid or PEG, and found that water had a remarkable rate accelerating effect on the Suzuki reaction and Suzuki-Type reaction when other reaction conditions were uniform.

研究了水對離子液體或聚乙二醇中Pd2催化的鹵代苯或苯甲酰氯與苯硼酸的Suzuki和Suzuki-Type偶聯(lián)反應收率的影響伊甸园永久地址在线2022。

Ethyl phenoxyacetate has been synthesised by the reaction of phenol with ethyl chloroacetate under the condition of solid-liquid phase transfer catalysis using PEG-400 as the catalyst.

于固一液相轉移催化條件下亚洲毛片在线播放，以PEG-400為催化劑，通過苯酚與氯乙酸乙酯反應合成了苯氧基乙酸乙酯亚洲欧美性爱一区。與85％的水合肼作用得到相應的酰肼国产亚洲真人视频在线观看。

Trans-3-phenylglycidate ethyl ester was prepared from benzaldehyde and ethyl chloroacetate through Darzens condensation reaction.

以苯甲醛和氯乙酸乙酯為原料，經Darzens 縮合反應合成了反式-3-苯基縮水甘油酸乙酯可以直接免费看黄色视频的网址，然后在25℃以氨水開環(huán)得赤型-3-苯基異絲氨酰胺黄片久久免费看aV。

A novel fluorescent acrylamide monomer, N-(4-Benzooxazol-2-yl-phenyl)- acrylamide, was prepared from o-aminophenol, p-aminobenzoic acid and acryloyl chloride, with polyphosphoric acid as dehydrating agent and triethylamine as deacidification agent.

以鄰氨基苯酚、對氨基苯甲酸和丙烯酰氯為原料免费欧洲毛片在线视频，以多聚磷酸為脫水劑A毛片毛片看免费一A毛片、三乙胺為脫酸劑，研制了一種新的熒光丙烯酰胺單體N-[4-（苯并噁唑-2-）苯基]丙烯酰胺www.99riavcom。

To synthesize aryl pyrimidines by taking benzene, methyl benzene ,acetic ether,1,2-dichloroethane as solvent,the yield and purity of the product are high by taking methyl benzene as solvent.

分別選用苯中文国产原创在线观看网站、甲苯、乙酸乙酯在线国产福利影院、二氯乙烷作為溶劑合成桂皮酰哌啶国产1000黄色网站，結果表明甲苯作為溶劑時產品純度高，收率高性交小说在线观看，可用于大規(guī)模生產欧美一区性爱视频。