環加成反應 的英文怎麼說

中文拼音 [huánjiāchéngfǎnyīng]
環加成反應 英文
cycloaddition reaction
  • 環 : Ⅰ名詞1 （環子） ring; hoop 2 （環節） link 3 （姓氏） a surname Ⅱ動詞（圍繞） surround; encircle;...
  • 成 : Ⅰ動詞1 （完成; 成功） accomplish; succeed 2 （成為; 變為） become; turn into 3 （成全） help comp...
  • 反 : Ⅰ名詞1 （方向相背） reverse side 2 （造反） rebellion 3 （指反革命、反動派） counterrevolutionari...
  • 應 : 應動詞1 （回答） answer; respond to; echo 2 （滿足要求） comply with; grant 3 （順應; 適應） suit...
  1. The expected adduct 100 was not stable and appeared to undergo further reaction to the spiro intermediate 101.

    由於所期待的加成物（100）不穩定，它經過進一步的反應，就產生螺環中間體。
  2. Study of cycloaddition of anthracene with c60c

    6與蒽環加成反應研究
  3. Using bf3 - et2o as a catalyst, the title compound was synthesized from allyl alcohol and epichlorohydrin by a series reaction included addition and cyclization

    烯丙醇和環氧氯丙烷在三氟化硼乙醚絡合物的催化作用下進行加成和環化反應制得標題化合物。
  4. Theoretical study on the 1, 3 - dipolar cycloaddition reaction of c, n - dimethyl nitrone and acrylonitrile

    偶極環加成反應的理論研究
  5. A wide variety of natural products, e. g. alkaloids, - lactames, biotin, amino sugars has been synthesized by 1, 3 - dipolar cycloaddition reaction between nitrones and alkenes

    通過硝酮與烯烴化合物的1 ， 3 -偶極環加成反應合成了許多天然?物，如生物鹼、 -內酰胺、生物素、氨基糖等。
  6. Abstract : a wide variety of natural products, e. g. alkaloids, - lactames, biotin, amino sugars has been synthesized by 1, 3 - dipolar cycloaddition reaction between nitrones and alkenes

    文摘:通過硝酮與烯烴化合物的1 ， 3 -偶極環加成反應合成了許多天然產物，如生物堿、 -內酰胺、生物素、氨基糖等。
  7. The characterization of " click chemistry " ( the 1, 3 - dipolar cycloaddition combined with the synthetic design of triazoles and tetrazoles ) is reviewed, and some recent examples of various bioconjugates synthesis are introduced based on the " click chemistry "

    摘要介紹了利用1 ， 3 -偶極環加成反應合成氮雜三唑和氮雜四唑的設計方法和反應特點，以及氮雜唑類化合物的合成在生物綴合物研究中的應用。
  8. Studies on the synthesis of imide - functionalized, - unsaturated ketones and their cycloaddition reaction

    不飽和酮的合成及與二烯烴環加成反應的研究
  9. Theoretical study on the stereoselectivity of intramolecular 4 - methyl - 5 - ethenyl - heptanitrile oxide cycloaddition

    庚腈氧化物分子內環加成反應的立體選擇性
  10. In order to solve the problems with heavy turpentine, such as complex constituents, vicinal boiling point, difficult to separation and hard to comprehensive utilization, the - santalene was converted to natural structure similar product - santalol by light - oxidize reaction, and caryophyllene epoxide was obtained at the same time

    摘要為了解決重質松節油組成復雜、沸點相近導致分離困難、難以深加工綜合利用等問題，利用光氧化反應技術，將其中的-檀香烯轉化為與天然-檀香醇結構相似的檀香型新香料-檀香烯醇，同時可得到環氧石竹烯。
  11. The low solubility of calcium zincate produced from the chemical reaction of zinc oxide and calcium hydroxide in alkaline solution can improve the cycling life the zinc electrode, and the discharge capacity will tend to be stable. furthermore, the effects of la2o3 additives on the electrochemical performances of zinc electrodes were investigated. the results shows that the addition of la2o3, in zinc electrode can improve the area of reduction peak and the hydrogen evolution potential which means the cathodic hydrogen evolution reaction can be hindered

    氧化鋅與氫氧化鈣在堿性溶液中化學反應生成的難溶於堿的鋅酸鈣可以使鋅電極的循環壽命得到提高，放電容量也趨于平穩，此外還考察了氧化鑭對鋅酸鈣電極電化學性能的影響，結果表明：添加適量氧化鑭能明顯改善鋅電極的電化學性能，使鋅電極的還原峰電位正移，電極反應可逆性得到改善，同時也可抑制鋅電極析氫反應的發生，提高了鋅電極的陽極電流，對陽極反應有一定的活化作用；同時還可以改善鋅電極的放電特性，增加電極的放電容量。
  12. This paper focuses on the cycloaddition reactions on solid phase supports and their applications in organic synthesis and mechanism research

    本文介紹了在固相載體上進行的環加成反應，及其在有機合成及反應機理研究中的應用。
  13. The system of [ 4 + 3 ] cycloaddition and its application in organic synthesis are reviewed. a brief discussion about the future research is also given

    本方對[ 4 + 3 ]環加成反應體系以最近在合成中的應用進行了綜述，並對進一步研究的方向進行了討論。
  14. The fallacy of composition is a kind of " macro - market failure ", so the stabilization policy should be chosen by the state. also, the paper analyzed the economic bodies " responses and the state ' s behaviors in the deflationary environment, and studied the price fluctuations in the money angle, and finally summarized the causes of the deflation in our country, pointing out that over - investment is the main factor. several suggestions about setting up some institutional and physical infrastructure facilities are brought forward in the end

    本文所做的工作還包括對通貨緊縮環境中微觀經濟主體的反應以及政府（央行）的行為進行了分析，並從貨幣角度對物價變動和通貨緊縮的形成作了探討，最後對我國通貨緊縮形成的原因進行了總結，認為90年代初期以來過度投資造成的生產能力相對過剩是引起我國通貨緊縮的主要原因，而抑制高通脹的「雙緊」政策、亞洲金融危機的沖擊以及國內一系列重大改革措施的負面影響等原因，則在一定程度上提前、加劇或延長了我國的通貨緊縮。
  15. In order to select male nucleo - sterile new genotype, a tentative idea was put forward for the nucleo - male sterility to attach a tps ( thermo - photoperiod sensitivity ) and a selection strategy of combination of selection and identification, at the same time, the spring and summer sowing method were used to provide different environment conditions of appraising sterility and tps. the results indicated that ( 1 ) sterility could be appraised under the spring sowing environment and tps could be appraised under summer sowing environment. ( 2 ) under spring sowing environment, sterility could be selected, but not maintained. thereby, lines selected could only be selected as recorded selection method in the experiment. ( 3 ) and then, selection was carried out from spring sowing line selected into summer sowing in same line with tps to select plants. these plants through the intercrossing selection had been combined with sterility and tps. in this way, a new selection protocol for selection sterile line with tps was formed. it mainly involves the spring and summer sowing method, recorded selection method and the intercrossing selection method

    為了選育新類型玉米雄性核不育系，提出了為玉米核不育性添加溫光敏感性的設想和選擇與鑒定相結合的策略，同時應用分期播種的方法為作物提供不同的生長和發育的環境條件，以鑒定玉米雄穗的育性變化和對不同環境條件溫光的反應.研究結果表明，春播環境下可鑒定和選擇玉米的不育性，夏播環境下可鑒定和選擇其溫光敏感性.針對玉米核不育性難以找到保持系的特性，結合兩種播期選擇兩種性狀.但春播環境下選擇的不育性群體難以通過選擇單株來保持其不育性，為記錄性群體選擇.通過從春播入選的雜合不育性優良株系群體轉移到其對應的夏播溫光敏感性入選的同一優良群體中進行優良單株選擇，能逐漸使不育性和溫光敏感性相結合而選育出純合溫光敏不育系.這種新的選擇程序主要包括應用分期播種法、記錄性選擇法和春夏兩季交叉式選擇法，使含有不育基因的可育株系逐步累積不育基因並增加了溫光敏感性而育成玉米溫光敏不育系
  16. Study on addition reactions of nitriliums with bicyclo 2, 2, 1 - hept - 2 - ene

    氮雜炔正離子與二環烯加成反應的理論研究
  17. Abstract : during the heating of scrap with carbon or hydrocarbon contented substances in some process, it will bring problems like explosion of carbon monoxide, fume and smell from oil volatilization, etc. ， if incomplete combustion occurs. through laboratory experiments, the time related variation of gas contents and post combustion ratio of fume during the heating of oil - bearing scrap are studied. the results show that the restrictive chain of reaction procedure is the thermolysis of oil ; that temperature and ( co ) / ( co2 ) ratio influence transformation ratio and post - combustion ratio under lower temperature ; that 900 is the temperature above which the complete reaction can be ensured at all ( co ) / ( co2 ) ratios

    文摘:在某些廢鋼熔煉過程中，當爐料中含碳及碳氫物質且燃燒不充分時，會帶來煙氣中一氧化碳的燃爆、油污揮發時造成的煙霧、臭味等問題.通過實驗室裝置研究含油廢鋼在加熱過程中煙氣成分隨時間的改變以及二次燃燒率的變化，試驗結果表明，反應過程的限制性環節是油分的熱分解；在較低的溫度下（ co ） / （ co2 ）比例影響轉化率和二次燃燒率；而在任意比例下保證充分反應的溫度為900以上
  18. From a viewpoint of organic synthesis chemistry, the recent development and applications of molecular iodine as a catalyst in organic reactions including the formation and cleavage of common protecting groups, oxidation, reduction, cyclization, addition, substitution and rearrangement are reviewed

    從有機合成化學的角度，按反應類型綜述了分子碘作為催化劑在有機化學中的應用，碘催化的反應主要涉及保護基團的形成和裂解、氧化和還原反應、成環反應、加成反應、取代反應和重排反應等。
  19. The paper reviews the recent progress in [ 3 + 2 ] cycloaddition using azomethine ylide, including preparation of ylide, mechanism and selectivity of reaction, and application in the total synthesis of natural products

    摘要綜述了亞甲胺葉立德的制備、它參與的[ 3 + 2 ]環加成反應的反應機理、反應選擇性及在天然產物全合成中的應用等方面的最新進展。
  20. At the same time, a series of development trend in organization structure innovation under the information environment has been put forward : flat model is the basis of organization structure optimization ; flexibility not only is beneficial to organization creation, innovation and accelerating reaction speed, but also strengthens organization ' s control centripetal force during the process of being operated continuously. it has rapid adjusting ability in time according to unexpected results of predictable change ; networking can not only decrease internal management cost and realize integration between supply chain and sale chain in worldwide, but also realize enterprise " s completely authorized managemen in order to promote substantial leap in enterprise economic benefit ; virtual model is centralizing limited resources on high additional value function and making low additional value virtual in order that the largest resource support can be obtained in the lowest cost and the whole organization is operated in the most effective way for adapting to market " s rapid change with high elasticity ; creating learning pattern in organization makes enterprise expand the width and depth of information being exchanged with the outer so as to keep enterprise in an unassailable position

    提出信息化環境下組織結構創新的一系列發展趨勢：扁平化是組織結構優化的基礎；柔性化既有利於組織的創造、革新、加快反應速度，又能使組織在不斷磨合中加強控制的向心力，具有適時根據可預期的變化的意外結果迅速調整的能力；網路化不僅減少了內部管理成本、實現了企業全世界范圍內供應鏈與銷售環節的整合，而且實現了企業充分授權式的管理，極大地促進了企業經濟效益，實現質的飛躍；虛擬化是將有限的資源集中在附加值高的功能上，而將附加值低的功能虛擬化，以最小的代價獲得最大的資源支持，從而使整個組織以最有效的方式運轉，以高彈性化來適應市場的快速變化；創建學習型組織，使企業拓展了與外界進行信息交流的廣度和深度，使企業立於不敗之地。
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