酮基 的英文怎麼說

中文拼音 [tóngjī]
酮基 英文
ketone group
  • 酮 : 名詞[化學] （有機化合物的一類） ketone; alkone; ket-; -one
  1. Eighteen compounds in the oil were identified by g c / ms. they are : seven ketone compounds : 2 - undecanone, 6, 10 - dimethy, 1 - cyclohexanol - l - butanone, 2, 5 - hexanedione, 2 ( 4h ) - benzofuranone, 5, 6, 7, 7, a - tetrahydro - 4, 4, 7a - trimethyl, 3 - buten - 2 - one, 4 - ( 2, 6, 6 - trimethyl - 1 - cyclohex en - 1 - yl ) -, ( e ), 6 - dodecanone, 3 - buten - 2 - one, 4 - ( 2, 6, 6 - trimethyl - 7 - oxabicycl o4. 1. 0hept - l - yl ) ; three alcoholic compounds : a - terpineol. benzyl alcoho 1, phytol ; two alkyl and acyl amine components : undecane, tetradecane and hydrazinecarboxamide, n, n - diphenyl -, acetamidobenzene ; one ester, a idehyde, alkyne and acid : butanoic acid : 2 - propenyl ester, 1 - octadecyne, 1 - octadecyne, palmitic acid

    三甲基一7一氧雙環p ， l ， 0庚烷基什丁烯酮上；醇3種：苯甲醇、 a松油醇、 3 ， 7 ， 11 ， 15十六烯2醇1 ；烷2種：十一烷、十四烷；酚胺2種：姘基甲酚h苯胺、乙酞苯胺；酯、醛、炔、和酸備是1種：丁酸烯丙酯、十八碳醛、十八炔、十六碳酸。
  2. These two amino acids derive their carbon skeletons from pyruvate.

    這兩個氨基酸從丙酮酸獲得它們的碳架。
  3. Standard specification for methyl n - amyl ketone

    甲基正戊基酮標準規范
  4. The enzyme 5 - enolpyuvyl - 3 - phosphoshikimic acid synthase ( epsp synthase ; ec2. 5. 1. 19 ), encoded by anoa locus, is a key enzyme present in microorganisms and plants where it has a function in the biosynthesis of aromatic amino acids. glyphosate ( n - phosphonomethyl - glycine ) is an effective non - selective, broad spectrum, postemergence herbicide, which has been shown to inhibit epsp synthase activity in a competitive manner. glyphosate tolerant plants can be mediated by either overproduction of the target enzyme or by the presence of an altered enzyme

    植物和微生物芳香族氨基酸生物合成過程中的一個關鍵酶? ? 5 -烯醇丙酮莽草酸- 3 -磷酸合成酶（ epspsynthase ； ec2 . 5 . 1 . 19 ）由aroa基因編碼，該酶受廣譜滅生性、內吸傳導型除草劑草甘膦的競爭性抑制，將epsp合成酶基因轉入植物中可獲得草甘膦耐受植株。
  5. In addition to avermectins, s. avermitilis produces oligomycin, a strongly toxic compound. gene deletion vector pxl05 was used to disrupt oligomycin polyketide synthase ( pks ) encoding genes ( olma ) in streptomyces avermitilis cz8 - 73, the producer of anthelmintic avermectins b and the cell growth inhibitor oligomycin. olma gene cluster in the chromosome was displaced by deletion allele on the plasmid via double crossover

    本研究以產阿維菌素b和寡黴素的阿維鏈黴菌cz8 - 73為出發菌株，構建了基因缺失載體pxl05 ，並將其轉入cz8 - 73中，通過缺失載體和染色體之間的同源雙交換，對染色體上長達90kb的寡黴素聚酮合酶（ pks ）基因簇（ olma ）進行了缺失。
  6. Since the middle of 20th century chinese scientists have put considerable effort and resources into the search for new antimalarial compounds extracted from chinese traditional herbs. an antimalarial drug was finally isolated in 1971 and named artemisinin or qinghaosu. its rapid action, low toxicity and powerful effect against falciparum malaria made it a favored subject for research

    青蒿素是一種含過氧基團組成縮酮的新倍半萜內酯，我國科學工作者於二十世紀70年代首次從中藥青蒿即菊科植物黃花蒿（ artemisiaannua ）中分離出青蒿素。
  7. Synthesis of chlorosulfonyl - containing pyrazolone azo compounds with thionyl chloride - dmf system

    含磺酰氯基吡唑啉酮類偶氮化合物的合成
  8. Supramolecular inclusion compound of - cyclodextrin with benzyl methyl ketone

    環糊精與芐基甲基酮超分子包合物
  9. Contains antioxidant bioflavonoid that helps resist free radical attacks, protects dna from harmful damage and prevents ageing

    含抗氧化生物類黃酮之天然抗氧化劑，能?御游離基對肌膚的傷害，減少細胞? ? na受損的機會，預防衰老。
  10. Bromochemical producer in china. most products are brominated hydrocarbons, but they also include acetyl and propionyl bromide, and phosphorus tribromide

    -主要以生產苯基丙酮1 ， 4 -二溴丁烷4 -丁氧基苯酚1 . 3 -二苯基丙酮等為主的醫藥中間體產品和殺菌靈。
  11. In the paper the solubilities of anthracene, phenanthrene and carbazole are studied in benzene, toluene, xylene, the heavy solvent oil, clohexane, dmf, pyridine, cyclohexanone and acetone, and qualitative analysis is done by three aspects in the process of the solute dissolved the solvent : ( l ) the molecular struture and the interspace struture ; ( 2 ) reciprocity force of the intermolecule ; ( 3 ) the cohesion energy

    本文考察了蒽、菲、咔唑在苯、甲苯、二甲苯、重溶劑油、環己烷、 dmf 、吡啶、環己酮和丙酮等有機溶劑中的溶解度。並從三個方面對溶劑溶解固體定性分析： （ 1 ）分子結構及空間結構， （ 2 ）分子之間相互作用力， （ 3 ）內聚能，得到的結果與實驗得到的數據基本一致。
  12. Based on recent molecular phylogenetic analyses using nucleotide sequences of the encoding the large subunit of ribulose 1, 5 - bisphyosphate carboxylase / oxygenase ( rbcl ), hypodematium should be not included in the athyriaceae, it has closely related to dryopteridaceae. on the other hand, athyriaceae, thelypteridaceae, blechnaceae, onocleaceae and woodisaceae form a large clade, so it may explain that tryon & tryon ( 1982 ) and kramer & kato ( 1990 ) putting it forward as dryopteriaceae s. 1

    運用cpdna基因組編碼的磷酸核酮糖羧化酶大亞基（ rbcl ）的基因序列測定而構建的系統樹，顯示蹄蓋蕨科、金星蕨科、烏毛蕨科以及其他科構成一條與鱗毛蕨科平行的分支，因此可以說明kramer & kato （ 1990 ）把蹄蓋蕨科放入廣義的鱗毛蕨科是不合理的。
  13. Abstract : 1 - ( 4 - pyridinyl ) - 2 - propanone, which is the key intermediate of synthesizing the milrinone, a cardiotonic agent, was synthesized from 4 - methyl - pyridine by acetylation in dichloromethane and phase transition catalyzing hydrolysis. the overall yield was 73. 1 %

    文摘:報道了以4 -甲基吡啶為原料，經酰化和相轉移催化水解反應制備強心藥物米利酮關鍵中間體1 - （ 4 -吡啶基） - 2 -丙酮的新合成方法，總收率達73 . 1 %
  14. Six quaternary ammonium tetraphenyl borates salt photobase generators were synthesized with the use of p - methoxy phenacylmethylene or 2 - naphthoymethylene as chromophore, and triethylene diamine, pyridine or 3 - methyl pyridine as tertiary amine

    摘要以對甲氧基苯乙酮、萘乙酮生色團為母體、雜環叔胺三亞乙基二胺，吡啶， 3 -甲基吡啶和四苯硼鹽為原料，合成了6種四苯硼季銨鹽光產堿劑。
  15. 1. two kinds of azo pigments with excellent photosensitivity, named as flurenone bisazo ( f - azo ) and oxazole bisazo ( o - azo ), are synthesized. the preparation of organic photoconductive blended materials and their photoconductivity in single - layered photoreceptors made from f - azo / titanium oxide phthalocyanine ( tiopc ) composite and o - azo / tiopc, respectively, are investigated

    合成了芴酮基偶氮（ f - azo ）與?唑基偶氮（ o - azo ）兩種光敏性優良的偶氮化合物，並以此制備了芴酮基偶氮酞菁氧鈦和?唑基偶氮酞菁氧鈦復合光電導材料體系及其單層光電導體。
  16. Specification for one - part gun grade silicone - based sealants

    單一組分槍噴式硅酮基密封劑規范
  17. Tribological behaviors of polyetherether ketone composites filled with nanometer al2o3 and polytetrafluoroethylene

    3和聚四氟乙烯填充聚醚醚酮基復合材料摩擦學特性研究
  18. An expression vector carrying a fragment encoding the amino - terminal part of an fr - 008 type i pks module, containing a keto - synthase ( ks ) and part of an acetyl - transferase ( at ) domain was constructed for trial expression of the extremely high g + c content ( 76 % ) pks gene in plant

    為探索在植物中表達極高g + c含量的pks基因的可能性，構建了攜帶有編碼fr - 008型pks模塊氨基端部分的基因的表達質粒，包括一個酮基合酶（ ks ）和部分酰基轉移酶（ at ）活性結構域。
  19. Based on the above theory, the fluorinone - based azo was used to prepare the single - layer photoreceptors with fluorinone - based azo / tiopc composites in chapter iv, experimental data indicated that the photoconductivity of fluorinone - based azo / tiopc composite photoreceptors was improved in comparison with that of chlorodiane blue azo / tiopc composite photoreceptors, the amelioration was attributed to the more pronounced electron - acceptor characteristic of fluorinone - based azo, these results further confirmed the mechanism proposed for the synergetic enhancement and complementary effects in azo / tiopc composite systems

    根據激發態下部分電荷轉移機理，本論文第四章選擇具有電子受體特徵比較明顯的芴酮基偶氮制備了芴酮基偶氮/酞菁氧鈦復合單層光電導體，研究結果發現復合材料的光導性能比氯丹藍偶氮/酞菁氧鈦復合體系有所提高，進一步證實了偶氮/酞菁復合材料光導性能的協同增強效應的內在原因。
  20. In this study, we attempted to construct an engineering strain producing only avermectin bl through the replacement of dna encoding dh2 - kr2 domains of the avermectin pks ( avedh2 - kr2 ) with dna encoding dh2 - kr2 domains from the pikromycin pks in s. avermitilis olm73 - 12, producing only avermectins b and no oligomycin. gene replacement vector pxl201 ( pkc1139 : : 5 ' flank + pia : dh2 - kr2 + 3 ' flank ) was used to transform 5. avermitilis olm73 - 12 protoplasts

    我們以不產寡黴素而僅產阿維菌素b的工程菌olm73 - 12為出發菌株，用委內瑞拉鏈黴菌（ streptomycesvenezuelae ）中編碼pikromycinpks模塊2上完全活性的dh和酮基還原酶（ kr ）的dna區域對olm73 - 12染色體上編碼阿維菌素pks模塊2中dh和kr的區域進行取代，試圖構建僅產b1組分的基因工程菌。
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