環二酯 的英文怎麼說

中文拼音 [huánèrzhǐ]
環二酯 英文
cyclic diester
  • 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;...
  • 二 : Ⅰ數詞（一加一后所得） two Ⅱ形容詞（兩樣） different
  • 酯 : 名詞[化學] （有機化合物的一類） ester
  1. A new convenient synthesis of a series of polyfluoroalkyl substituted cyclopropane derivatives was achieved by the reaction of polyfluoroalkyl iodides with diethyl allylmalonate in the presence of sodium dithionite in 45 % ~ 55 % yields

    摘要以連二亞硫酸鈉為引發劑，烯丙基丙二酸二乙酯與多氟烷基碘代烷在溫和條件下反應，方便地得到一系列多氟烷基取代的環丙烷衍生物，產率45 % ~ 55 % 。
  2. ( 2 ) an aminobenthiazole schiff base has been synthesized as a new fluorescence carrier by reacting 2 - aminobenthiazole with p - allyoxybenzoldohyde. the new kind of schiff base can be utilized for preparing an optical sensor, used for determining furazolidone based on the fluorescence quenching. aminobenthiazole schiff base immobilized on a glass plate surface by covalent bonding can circumvent the leakage of the fluorephore from the sensor surface and guarantee a relatively long working lifetime

    （ 3 ）用強熒光基團2 -氨基苯並蒽酮與對烯丙氧基苯甲醛合成了另一種新的schiff堿類化合物，與甲基丙烯酸羥乙酯、丙烯酰胺、環乙二醇二丙烯酸酯共聚制得光極膜，制備了一種苯並蒽酮schiff堿光化學傳感器，可用於單質碘的測定。
  3. Huang, x., liu, z. - x., “ solid - phase synthesis of 4 ( 1h ) ? quinolone and pyrimidine derivatives on a new scaffold - polymer - bound cyclic malonic acid ester ”, j. org. chem., 2002, 67 ( 19 ), 6731 - 6737

    國家自然科學基金面上重點項目： 「丙二酸環酯聚合物試劑參與的雜環化合物固相合成」 （ 2001 - 2003 ） 。
  4. A series of copoly ( olefin - co - ester ) s were synthesized and characterized by starting from cyclooctene, cyclooctadiene or nobornene with ethanediol di ( 10 - undecenoate ) via metathesis copolymerization and hydrogenation reaction

    摘要通過環辛烯、環辛二烯和降冰片烯-十一烯酸乙二醇二酯的易位共聚合及氫化反應合成了烯烴共聚酯。
  5. New developments of polycarboxylic acid derivative catalysts, ion exchange resin catalysts, macrocyclic chelating compound catalysts, quaternary phosphonium salt catalysts, heterogeneous hydrotalcite - type catalysts and other catalysts which to be used in ethylene oxide catalytic hydration, and the catalysts of synthesis method of ethylene glycol via preparation and reaction of ethylene carbonate are expounded

    闡述了用於環氧乙烷催化水合反應中的多羧酸衍生物催化體系、離子交換樹脂催化體系、大環螯合物催化體系、季?鹽催化體系、多相水滑石型催化體系及其他催化體系近年來的研究進展；同時闡述了用於碳酸亞乙酯法合成乙二醇反應中的催化體系的新進展。
  6. The properties and toxicity of phthalic acid esters were presented. pretreatments and analysis of paes were summarized and the development of degradation of paes was introduced

    摘要介紹了環境激素鄰苯二甲酸酯的性質與危害，總結了鄰苯二甲酸酯的分析檢測方法和鄰苯二甲酸酯的污染治理技術。
  7. Abstract : researches on unformaldehyde unironing finishing are summarized in this paper. functions and deficiencies of glyoralamido, water soluble heat reactive polyure thane, bishydroxyethyl - sulfoue, natural high precision chitosan, reactive organosilicon, amyloidosis epoxide, multiple carboxyl acid compound are also analyzed and compared

    文摘:綜述了無甲醛免燙整理方面的研究，分析比較了乙二醛-酰胺類整理劑、水溶熱反應性聚氨酯、雙羥乙基碸、天然高聚物殼聚糖、反應性的有機硅、澱粉改性物、環氧類整理劑、多羧酸化合物等無甲醛抗皺整理劑的功能以及各種整理劑存在的不足
  8. By using sterically hindered, electron - rich alkylphosphines and n - heterocyclic carbenes ( nhc ), this process has encompassed a broad range of substrates including ketones, aldehydes, esters, amides, malonates, nitrocompounds, nitriles and sulfones

    隨著大位阻、富電子烷基膦和氮雜環卡賓（ nhc ）為配體的催化體系的出現，該類反應的底物已從酮擴展到醛、酯、酰胺以及含酸性氫的化合物如丙二酸酯、硝基化合物、腈、碸等。
  9. Calmodulin - dependent cyclic nucleotide phophodiesterase was prepared from bovine brain by two - step deae - cellulose column chromatography

    摘要通過兩次離子交換柱層析，從牛腦中制備鈣調素依賴性的環核苷酸磷酸二酯酶。
  10. Synthesis and characterization of decanedioic acid dicyclohexanolate

    癸二酸二環己酯的合成及表徵
  11. Abstract : synthesis of sterically hindered dicyclohexylmethyl 、 l - menthyl and tert - butyl diazoacetate by diazo transfer was described on this paper

    文摘:研究了用重氮轉移法合成具有較大空間位阻的重氮乙酸二環己基甲酯、 l -薄荷酯和叔丁酯。
  12. Scanning electron microscope ( sem ) and x - ray photoelectron spectroscopy ( xps ) studies indicated that the additive of cs _ 2 took part in the sei film - forming in the process of battery cycles. the elements of carbon, oxygen and fluorin are the main members in the compounds of sei film. sulfur is also one of the main elements of the sei film when the electrolyte included additive of cs _ 2

    利用掃描電子顯微鏡和x射線光電子能譜研究表明，二硫化碳在電池的循環過程中參與了sei膜的形成， sei膜的組成物質中主要是c 、 o 、 f三種元素，加入二硫化碳后， s元素也成為主要組分， sei膜的主要組成物質有烷基氧鋰、烷基碳酸酯鋰、碳酸鋰、硫酸鹽、聚烯烴及氟化鋰等。
  13. The cathodic electrophoretic coating of epoxy resin was prepared with half blocked isocyanate as curing agent

    在此採用半封閉的甲苯二異氰酸酯作為固化劑制得了環氧樹脂陰極電泳塗料。
  14. The main research now is focused on the polymerization of difluoramino substituted oxetane monomers, the preparation of neopentyl difluoramino nitrato plasticizers, and the molecular design and synthesis of cyclic n - nitramino geminal difluoramino oxidizers

    目前該領域的研究工作主要集中在二氟氨基取代環氧丁烷聚合物合成，新戊基二氟氨基硝酸酯增塑劑制備，以及環n -硝胺基偕二氟氨基氧化劑的分子設計與合成上。
  15. Abstract : the title compound useful as insecticide, is synthesized from methyl 3 - ( 2 :, 2, 2trichloroethyl ) - 2, 2 - dimethylcyclopropanecarboxylate. by uniform design, the experimental condition is optimized. mathematical model is established and discussed

    文摘:從3 - （ 2 ， 2 ， 2 -三氯乙基） - 2 ， 2 -二甲基環丙烷羧酸甲酯出發制備二氯菊酸甲酯。應用均勻設計選擇反應優化條件，並對實驗數據建立數學模型，同時對模型進行分析。
  16. ( 2 ) in order to optimize the condition of analysis for the chosen direct spme system, the chosen components are : chloroform, acetic acid, n - amylalcohol, n - butyl acetate, dmf, p - xylene, cyclohexanone, aniline, phenol

    （ 2 ）對選擇的直接spme體系進行了分析測試條件優化，選擇的組分為：三氯甲烷，乙酸，正戊醇，乙酸丁酯， n ， n -二甲基甲酰胺，對二甲苯，環己酮，苯胺，苯酚。
  17. " the concept is that systemic sclerosis, which is a severe disease characterized by systemic fibrosis, is at the beginning mainly a vascular disease, and we hypothesize that using major vascular drugs ( calcium channel blockers, endothelin antagonists, prostacyclins, phosphodiesterase inhibitors, etc. ) from the beginning and at appropriate dosage may interfere with the fibrotic process which seems secondary, " dr

    「從概念上講，系統性硬化是一種以系統性的纖維化變性為特徵的嚴重疾病，早期主要表現在血管性的病變，因此我們推測早期、適量地應用主要作用於血管的藥物（如鈣離子阻斷劑，內皮素拮抗劑，前列環素，磷酸二酯酶抑制劑等）可能可以干預似乎是繼發發生的纖維化過程。 」
  18. " the concept is that systemic sclerosis, which is a seere disease characterized by systemic fibrosis, is at the beginning mainly a ascular disease, and we hypothesize that using major ascular drugs ( calcium channel blockers, endothelin antagonists, prostacyclins, phosphodiesterase inhibitors, etc. ) from the beginning and at appropriate dosage may interfere with the fibrotic process which seems secondary, " dr

    「從概念上講，系統性硬化是一種以系統性的纖維化變性為特徵的嚴重疾病，早期主要表現在血管性的病變，因此我們推測早期、適量地應用主要作用於血管的藥物（如鈣離子阻斷劑，內皮素拮抗劑，前列環素，磷酸二酯酶抑制劑等）可能可以干預似乎是繼發發生的纖維化過程。 」
  19. Vitamin b3 : be beneficial to skin absorb vitamin c. help whitens and moisturizes your skin

    維生素b3 ：促進血液循環，幫助核苷酸磷酸二酯酶的合成，利於維c全面吸收，抑制黑色素生成，達到美白作用
  20. Synthesis of cyclohexyl acetate catalyzed by ammonium ferric sulfate dodecahydrate

    十二水合硫酸鐵銨催化合成乙酸環己酯
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