助手标题  
全文文献 工具书 数字 学术定义 翻译助手 学术趋势 更多
查询帮助
意见反馈
   氨基取代 的翻译结果: 查询用时:0.766秒
图标索引 在分类学科中查询
所有学科
化学
更多类别查询

图标索引 历史查询
 

氨基取代
相关语句
  amino substituted
     Dopamine D_2 receptor antaganists synthsis of amino substituted benzamide compounds
     多巴胺D_2受体拮抗剂氨基取代苯酰胺类化合物的合成
短句来源
  amino-substituted
     Studies on Structure and Properties of Tetra-Phenylporphyrin and Its Derivatives(Ⅴ) ──Homologous Linear Rule of Amino-Substituted Tetraphenylporphyrin and Its Derivatives
     四苯基卟啉及其衍生物的结构与性质的研究(Ⅴ)──氨基取代四苯基卟啉衍生物的同系线性规律
短句来源
     Syntheses and Structural Studies of Zirconocenes via Amino-substituted Fulvene
     由6-氨基取代富烯合成二茂锆配合物及其结构研究
短句来源
     Another amino-substituted nonionic water-soluble ligand PEO-DPPSA has also been prepared by the ethoxylation of 4-(diphenylphosphino)phenylsulfamide with ethylene oxide.
     通过4-(二苯基膦基)苯磺酰胺和环氧乙烷的乙氧基化反应合成了另一类氨基取代聚醚型非离子水溶性膦配体(聚氧乙烯)-4-(二苯基膦基)苯磺酰胺(简写PEO-DPPSA)。 PEO-DPPPA和PEO-DPPSA的结构式如下:
短句来源
  “氨基取代”译为未确定词的双语例句
     In the α-amino capric acid,(1) a potential energy plot for rotation about the α-C_1—C_2 bond free rotation energy capacity is 8.425 1 kcal/mol,and the α-C—N bond free rotation is 14.042 3kcal/mol.
     通过氨基取代直链型脂肪族羧酸化合物的空间构象和电子结构分析,在α-氨基癸酸中,(1)-αC-C键自由旋转能垒8.425 1kcal/mol,-αC-N键自由旋转能垒14.042 3kcal/mol,高能构象时分子极性较大,为化学反应活性构象;
短句来源
     (2) The C-atom charge density is influenced by azyl and azyl replacine position n increasing,α-C、β-C、γ-C C atom charge density weakening.
     (2)碳原子电荷密度受到氨基的影响,随着氨基取代位置n增加,-αC、-βC、-γC等碳原子负电荷密度减少;
短句来源
     13 C NMR STUDY OF SUBSTITUTED 4 (ARYLAMINO)QUINOLINES
     4-芳氨基取代喹啉的~(13)CNMR研究
短句来源
     Synthesis of Dialkyl 2-Amino Substituted Thiazolyl Phosphonates
     2-氨基取代噻唑基膦酸酯的合成
短句来源
     Synthesis of 3∶1 Monoamino Substituted Asymmetrical PhthalocyanineZinc(Ⅱ) and Aggregative Behavior in Organic Solvents
     单氨基取代3∶1不对称酞菁锌的合成及其在有机溶剂中聚集状态的研究
短句来源
更多       
  相似匹配句对
     Synthesis of Dialkyl 2-Amino Substituted Thiazolyl Phosphonates
     2-氨基取代噻唑基膦酸酯的合成
短句来源
     Study of Synthesis of N-yl-4-aminophthalimides
     N-取代-4-氨基邻苯二甲酰亚胺的合成研究
短句来源
     The Synthesis of Substituted Phenyl Ethylamine
     取代苯乙胺的合成
短句来源
     Synthesis of Substituted Benzimidazole
     取代苯并咪唑的合成
短句来源
     AMINO-SILICONE SOFTENER
     氨基聚硅酮柔软剂
短句来源
查询“氨基取代”译词为用户自定义的双语例句

    我想查看译文中含有:的双语例句
例句
为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法,我们为您准备了出自英文原文的大量英语例句,供您参考。
  amino substituted
Such compounds should be described as amphiprotic, and include NSAIDs such as 4- and 5-amino substituted salicylic acids, niflumic acid, amfenac, WY 18251, and azapropazone.
      
This unique emodin derived 6-amino substituted polyhydroxylated anthraquinone may serve as a promising synthon for a new class of amino functionalized photodynamically active hypericin derivatives.
      
The alkylation of the ethyl esters of 4-methyl, 4-chloro-, and 4-amino substituted 2-oxo-1,2-dihydroquinoline-3-carboxylic acid by ethyl iodide in the system DMF/K2CO3 has been studied.
      
Calorimetric studies have been performed on the intercalation of a series of nitro and amino substituted naphthalene monoimide cations to calf thymus DNA.
      
For the amino substituted naphthalene monoimides, the KB values are similar to the other monoimides, but ΔHBo=-6.7 kcal-mol-1.
      
更多          
  amino-substituted
Spectroelectrochemical properties of poly-o-phenylenediamine (PPD) and the synthesized composite of PPD and polyaniline-two chemically related polymers containing an amino-substituted benzene ring but having different conduction nature-are studied.
      
New methods have been developed for the synthesis of fused amino-substituted pyrrolidinones and dihydropyrrolones.
      
Heating of 5- and 7-chloro-6H-anthra[1,9-cd]pyrazol-6-ones in butylamine and aniline gives the corresponding peri-amino-substituted anthrapyrazole derivatives.
      
Vicarious nucleophilic C-amination of nitrobenzene, 1-methyl-5-nitrobenzimidazole, and 1-methyl-6-nitrobenzimidazole in superbasic medium (potassium tert-butoxide-dimethyl sulfoxide) gave the corresponding amino-substituted derivatives.
      
Structure and molecular first hyperpolarizability (β) of nitro-amino-substituted 6-vertex 1,6-carboranes are investigated by means of DFT calculations.
      
更多          


4-Methyl-5-ethyl-2-thiouracil reacts with ethyl bromide in alcoholic solution in presence of sodium ethylate,forming 2-ethylmercapto-4-methyl-5-ethyl-uracil(m. p.141°),from which 2-ethylmercapto-4-methyl-5-ethyl-6-chloropyrimidine,boiling at 148-150° at 13 mm.,at 164-166° at 17 mm.,or at 180-185° at 25 mm.,is prepared according to the directions given by Johnson and Bailey.This chloro- pyrimidine reacts with sodium methylate in methyl alcohol forming 2-ethyl- mercapto-4-methyl-5-ethyl-6-methoxypyrimidine,boiling...

4-Methyl-5-ethyl-2-thiouracil reacts with ethyl bromide in alcoholic solution in presence of sodium ethylate,forming 2-ethylmercapto-4-methyl-5-ethyl-uracil(m. p.141°),from which 2-ethylmercapto-4-methyl-5-ethyl-6-chloropyrimidine,boiling at 148-150° at 13 mm.,at 164-166° at 17 mm.,or at 180-185° at 25 mm.,is prepared according to the directions given by Johnson and Bailey.This chloro- pyrimidine reacts with sodium methylate in methyl alcohol forming 2-ethyl- mercapto-4-methyl-5-ethyl-6-methoxypyrimidine,boiling at 152-154° at 11 mm., at 156-160° at 16.5 mm.,or at 162° at 22 mm.,and with sodium ethylate in ethyl alcohol forming 2-ethylmercapto-4-methyl-5-ethyl-6-ethoxypyrimidide,boiling at 139-140° at 5 mm.or 142-145° at 7 mm. 2-Ethylmercapto-4-methyl-5-ethyl-6-methoxypyrimidine interacts with chlorine with formation of 2-ethylsulfonyl-4-methyl-5-ethyl-6-methoxypyrimidine,m.p.45- 47°,in a yield of 81% of the theory.2-Ethylmercapto-4-methyl-5-ethyl-6-ethoxy- pyrimidine interacts with chlorine with formation of 2-ethylsulfonyl-4-methyl-5- ethyl-6-ethoxypyrimidine,boiling at 202-205° at 5 mm.or at 212-215° at 10 mm.,in a yield of 91% of the theory.2-Ethyl-mercapto-4-methyl-5-ethyl-6- chloro-pyrimidine interacts with chlorine with formation of 2-ethylsulfonyl-4- methyl-5-ethyl-6-chloro-pyrimidine,m.p.74-75.5°,in a nearly quantitative yield. 2-Ethylsulfonyl-4-methyl-5-ethyl-6-chloro-pyrimidine reacts with sodium methy- late in methyl alcohol,producing 4-methyl-5-ethyl-2,6-dimethoxypyrimidine,boil- ing at 123° at 15 mm.or 113-115° at 11 mm.;while 2-ethylsulfonyl-4-methyl- 5-ethyl-6-methoxypyrimidine reacts with sodium methylate in methyl alcohol, producing the same pyrimidine-dimethyl ether,boiling at 123° at 17 mm.2- Ethylsulfonyl-4-methyl-5-ethyl-6-ethoxy-pyrimidine reacts with sodium ethylate in ethyl alcohol in an analogous manner to form 4-methyl-5-ethyl-2,6-diethoxypyri- midine,which boils at 130° at 8 mm.4-Methyl-5-ethyl-6-methoxy-uracil,m.p. 194-195°,is produced by boiling 2-ethylsulfonyl-4-methyl-5-ethyl-6-methoxypyri- midine with 10% sodium hydroxide solution.Likewise,4-methyl-5-ethyl-6-ethoxy- uracil,m.p.179-180°,is produced by boiling 2-ethylsulfonyl-4-methyl-5-ethyl- 6-ethoxypyrimidine with 10% sodium hydroxide solution.The action of alcoho- lic ammonia upon 2-ethylsulfonyl-4-methyl-5-ethyl-6-chloropyrimidine at 100—105° gives 2-ethylsulfonyl-4-methyl-5-ethyl-6-aminopyrimidine,melting at 108—109°. 4-Methyl-5-ethyl-cytosine,m.p.296-298° or m.p.294°,is formed (i) by boiling 2-ethylsulfonyl-4-methyl-5-ethyl-6-amino-pyrimidine with 6 N hydrochloric acid and (ii) by heating 4-methyl-5-ethyl-6-methoxy-uracil with alcoholic am- monia at 120-140° for 18 hours.Thus,there are two new routes for synthesiz- ing 4-methyl-5-ethyl-cytosine,starting from 2-ethylmercapto-4-methyl-5-ethyl- uracil.Although these new methods involve one or two steps more than the old method described by Johnson and Bailey,who heated 2-ethylmercapto-4-me- thyl-5-ethyl-6-chloropyrimidine with alcoholic ammonia,producing the correspond- ing mercaptoaminopyrimidine,from which the ethylmercapto-group was removed by boiling with hydrochloric acid,they appear to be unique.

(1)2-乙硫醇基-4-甲基-5-乙基-6-氯代嘧啶和醇钠在醇溶液中反应,则生成它相应的乙硫醇-嘧啶-醚类。(2)2-乙硫醇-嘧啶类有下列结构:式中 X 为卤素或烷氧基。它很容易和氯互相作用,形成嘧啶一砜。(3)当2-乙磺醯-嘧啶类和醇钠及碱作用时,则嘧啶中的乙磺酰基在所有的情况下都相似于一个易于被烷氧基和羟基所置换的卤原子。然而氨和氯-乙磺酰-嘧啶反应时,则氯原子为氨基取代,而乙磺酰基仍然是不作用的。(4)叙述了两种新的合成4-甲基-5-乙基-6-氨基-2-氧-嘧啶的方法。

The condensation of thiourea with ethyl methyl-acetoacetate in the presence of sodium ethylate in absolute ethyl alcohol gives 2-thio-4,5-dimethyl-6-oxy-pyrimidine, m.p. 279-280°, which is ethylated to form 2-ethylmercapto-4,5-dimethyl-6-oxy-pyrimidine, m.p. 155-156°, by treating the former with ethyl iodide in the presence of sodium ethylate in absolute alcohol. 2-Ethyl mercapto-4,5-dimethyl-6-oxy-pyrimidine reacts with phosphorous oxychloride to form its corresponding chloro-compound, 2-ethylmercapto-4,5-dimethyl-6-chloro-pyrimidine,...

The condensation of thiourea with ethyl methyl-acetoacetate in the presence of sodium ethylate in absolute ethyl alcohol gives 2-thio-4,5-dimethyl-6-oxy-pyrimidine, m.p. 279-280°, which is ethylated to form 2-ethylmercapto-4,5-dimethyl-6-oxy-pyrimidine, m.p. 155-156°, by treating the former with ethyl iodide in the presence of sodium ethylate in absolute alcohol. 2-Ethyl mercapto-4,5-dimethyl-6-oxy-pyrimidine reacts with phosphorous oxychloride to form its corresponding chloro-compound, 2-ethylmercapto-4,5-dimethyl-6-chloro-pyrimidine, which boils at 136-140°/8 mm, at 145-150°/12 mm, at 155-160°/14 mm or at 162- 164°/18 mm. The action of alcoholic ammonia on 2-ethylmercapto-4,5-dimethyl-6-chloro- pyrimidine at 140-150° gives 2-ethylmercapto-4,5-dimethyl-6-amino-pyrimidine, melting at 90-91° to a clear oil. 2-Ethylmercapto-4,5-dimethyl-6-chloro-pyrimidine reacts with sodium methylate in anhydrous methyl alcohol to give its corresponding pyrimidine-methyl-ether, 2-ethylmercapto-4,5-dimethyl-6-methoxy-pyrimidine, boiling at 138°/5 mm, at 140°/6 mm, at 146°/10 mm, at 145-150°/11 mm, or at 154°/16 mm. The action of chlorine on ethylmercapto-pyrimidines gives pyrimidine-sulfones. 2-Ethylmercapto-4,5-dimethyl-6-chloro-pyrimidine suspending in water and saturated with chlorine gas at a lower temperature forms 2-ethylsulphonyl-4,5-dimethyl-6-chloro-pyrimidine, m.p. 78.5°. Similarly, 2-ethylsulphonyl-4,5-dimethyl-6-methoxy-pyrimidine, m.p. 65-66°, is prepared by the action of chlorine on 2-ethylmercapto-4,5-dimethyl-6-methoxy-pyrimidine, suspending in water. Nevertheless, the action of chlorine on 2-ethylmercapto-4,5-dimethyl-6- methoxy-pyrimidine in aqueous methyl alcoholic solution gives (1) ethylsulphonyl chloride, b.p. 78°/15 mm, (2) 2-chloro-4,5-dimethyl-6-methoxy-pyrimidine, m.p. 65°, (3) 2-ethylsul- phonyl-4,5-dimethyl-6-methoxy-pyrimidine and (4) 4,5-dimethyl-uracil, m.p. 296°. 2-Ethylsulphonyl-4,5-dimethyl-6-chloro-pyrimidine reacts with alcoholic ammonia to form 2-ethylsulphonyl-4,5-dimethyl-6-amino-pyrimidine, m.p. 134-135°, which is boiled with dilute hydrochloric acid to give 4,5-dimethyl-cytosine, m.p. 332-334°. 2-Ethyl-sulphonyl- 4,5-dimethyl-6-methoxy-pyrimidine reacts with dilute sodium hydroxide to form 2-keto- 5,6-dimethyl-4-methoxy-1,2-dihydro-pyrimidine, m.p. 230-231°, which is heated with alcoholic ammonia at 160-170° to give 4,5-dimethyl cytosine, m.p. 334-335°. Thus, two methods for synthesizing 4,5-dimethyl-cytosine are described.

1.甲醇鈉對於2-乙硫醇基-4,5-二甲基-6-氯代嘧啶在甲醇溶液中生成相應的乙硫醇基嘧啶甲醚。 2.氯對於2-乙硫醇基-4,5-二甲基嘧啶衍生物(I),在水溶液中的作用是特殊的,嘧啶中的不飽和現象不被氯化反應改變而硫醇基團被氧化,形成穩定相應嘧啶碸的衍生物(II),因此製備了2-乙磺醯基-4,5-二甲基-6-甲氧基嘧啶和2-乙磺醯基-4,5-二甲基-6-氯代嘧啶. 3.2-乙硫醇-4,5-二甲基-6-甲氧基嘧啶在甲醇中進行氯化反應,現象甚複雜,並且嘧啶碸的產量很低,2-乙硫醇-4,5-二甲基-6-甲氧基嘧啶在甲醇中被氯氧化,首先形成嘧啶碸,後者並不穩定,再與氯作用形成乙磺醯氯和2-氯代-4,5-二甲基-6-甲氧基嘧啶。 4.嘧啶碸與鹼作用,乙磺醯基被羥基取代,同時在嘧啶環6位上的乙氧基保留,因此2-乙磺醯基-6-甲氧基-4,5-二甲基嘧啶與鹼作用,形成2-酮-5,6-二甲基-4-甲氧基-1,2-二氫嘧啶。 5.酒精-氨的溶液作用在氯代乙磺醯基嘧啶得到氨基-乙磺醯基嘧啶,在氯代乙磺醯基嘧啶中,嘧啶環上2位的乙磺醯基仍保留,而6位土的氯被氨基取代。 6.本文敘述了合成4,5-二甲基-2-氧代-6-氨...

1.甲醇鈉對於2-乙硫醇基-4,5-二甲基-6-氯代嘧啶在甲醇溶液中生成相應的乙硫醇基嘧啶甲醚。 2.氯對於2-乙硫醇基-4,5-二甲基嘧啶衍生物(I),在水溶液中的作用是特殊的,嘧啶中的不飽和現象不被氯化反應改變而硫醇基團被氧化,形成穩定相應嘧啶碸的衍生物(II),因此製備了2-乙磺醯基-4,5-二甲基-6-甲氧基嘧啶和2-乙磺醯基-4,5-二甲基-6-氯代嘧啶. 3.2-乙硫醇-4,5-二甲基-6-甲氧基嘧啶在甲醇中進行氯化反應,現象甚複雜,並且嘧啶碸的產量很低,2-乙硫醇-4,5-二甲基-6-甲氧基嘧啶在甲醇中被氯氧化,首先形成嘧啶碸,後者並不穩定,再與氯作用形成乙磺醯氯和2-氯代-4,5-二甲基-6-甲氧基嘧啶。 4.嘧啶碸與鹼作用,乙磺醯基被羥基取代,同時在嘧啶環6位上的乙氧基保留,因此2-乙磺醯基-6-甲氧基-4,5-二甲基嘧啶與鹼作用,形成2-酮-5,6-二甲基-4-甲氧基-1,2-二氫嘧啶。 5.酒精-氨的溶液作用在氯代乙磺醯基嘧啶得到氨基-乙磺醯基嘧啶,在氯代乙磺醯基嘧啶中,嘧啶環上2位的乙磺醯基仍保留,而6位土的氯被氨基取代。 6.本文敘述了合成4,5-二甲基-2-氧代-6-氨基嘧啶(或2-酮-4-氨基-5,6-二甲基-1,2-二氫化嘧啶)的新方法。

~~

1.通过化合物(Ⅱ)与相应的(Ⅰ)及氯苄反应情况,说明化合物(Ⅰ)中氯原子的活泼性小于酰氯、而大于卤烷及乙烯式卤化物中的卤原子。而相当于丙烯式氯苄中的氯原子。 2.化合物(Ⅰ)与苯酚纳及β-萘酚钠在水或二氧六环中作用,主要产物为ArO-基取代物(V_a,b),但与苯酚钠在二氧六环中作用时还分离出少量的苯基取代物(Ⅵ) 3.化合物(Ⅰ)与邻氨基苯酚作用时,不输在高温加热或在二氧六环中与其纳盐作用时均生成氨基取代产物(Ⅶ)。 4.化合物(Ⅱ)与苯甲酰氯在吡咤中作用时,除产物(Ⅹ)与(Ⅸ)外,还分离出产物(Ⅲ)。我们认为(Ⅲ)的生成是由于化合物(Ⅱ)中的-ONa基与苯甲酰氯中的氯原子进行交换的结果。相反的交换反应发生在(Ⅰ)与叔丁醇钠或丙二酸乙酯钠化合物反应的过程中。

 
<< 更多相关文摘    
图标索引 相关查询

 


 
CNKI小工具
在英文学术搜索中查有关氨基取代的内容
在知识搜索中查有关氨基取代的内容
在数字搜索中查有关氨基取代的内容
在概念知识元中查有关氨基取代的内容
在学术趋势中查有关氨基取代的内容
 
 

CNKI主页设CNKI翻译助手为主页 | 收藏CNKI翻译助手 | 广告服务 | 英文学术搜索
版权图标  2008 CNKI-中国知网
京ICP证040431号 互联网出版许可证 新出网证(京)字008号
北京市公安局海淀分局 备案号:110 1081725
版权图标 2008中国知网(cnki) 中国学术期刊(光盘版)电子杂志社