bromination

bromination

1. Research on Bromination of 4-Nitroaniline With Hydrobromic Acid and Hydrogen peroxide as Brominating Agent in Medium of Dilute Sulfuric Acid

4-硝基苯胺在稀硫酸介质中用氢溴酸和过氧化氢为溴化剂溴化反应的研究

2. Study on 7-Epi-10-deacetylcephalomannine:HPLC Assay and Its Bromination Products as Potent Antitumor Agents

7-表-10-去乙酰基三尖杉宁碱的HPLC分析方法及其溴化产物的抗癌活性研究(英文)

3. chain bromination

[化] 链上溴化

4. α- bromination

α-溴化反应

5. Keywords pyruvaldehyde;bromination;oxidation;acetone;1;2 propanediol;

丙酮醛;溴代;氧化;丙酮;1;2-丙二醇;

6. Keywords Ethyl vanillin;Bromination;4-Hydroxy-benzaldehyde;Eethoxylation;

乙基香兰素;溴化;对羟基苯甲醛;乙氧基化;

7. Keywords dimethoxybenzaldehyde synthesis;oxidation reduction;bromination;diazotization deamination;methoxylation;decarboxylation;

二甲氧基苯甲醛;氧化-还原;溴化;重氮化去氨基;甲氧基化;脱羰;

8. Using 4-chloro salicylic acid as starting material, through novel method, via esterification, etherification, hydrolysis, cyclization, bromination to give the product.

从4氯水杨酸开始,运用新颖的方法,经过酯化、成醚、水解、闭环、溴代5步化学反应得到产物,总收率19%。

9. Memantine hydrochloride was synthesized from 1,3 dimethyladamantane by bromination, acetamidation with acetonitrile in sulfuric acid and hydrolysis with an overall yield of 67.8%.

以1,3-二甲基金刚烷为原料,经溴化、乙腈和硫酸的作用下乙酰胺基化、水解、成盐等反应及改进的后处理方法得到盐酸美金刚,总收率67.8%。

10. Bromacil was synthesized using 2-bromobutane and urea as the starting materials in three steps including condensation,cyclization and bromination with total yield of 61%.

以2-溴丁烷和尿素作为起始原料,经缩合、环化、溴代三步反应得到除草定,总收率为61%。

11. Ethyl 4 bromo 2 butenoate,a medicine intermediate,was prepared using 2 butenoic acid as main raw material through esterification and bromination reactions.

以2丁烯酸为原料,通过酯化和溴代反应研制了药物中间体4溴2丁烯酸乙酯。

12. Benzbromarone was synthesized from salicylaldehyde by condensation with chloroacetone, reduction, acylation, demethylation and bromination with 40.6%overall yield.

以水杨醛为原料，经缩合、还原、酰化、脱甲基、溴化反应制得苯溴马隆，总收率40.6%。

13. Bromoethyl 2(H) quinolinone was synthesized by the acylation of aniline with biketene in toluene, the bromination in chloroform, and the cyclization in sulfuric acid.

以苯胺为原料,经双乙烯酮在甲苯中酰化得乙酰乙酰苯胺;在氯仿中溴化得溴乙酰乙酰苯胺;

14. Rimantadine hydrochloride was synthesized from adamantane via bromination, acetylation and addition with formamide followed by hydrolysis. The overall yield was 31.5%.

以金刚烷为起始原料 ,经溴化、乙酰化、甲酰胺加成和水解反应 ,制得盐酸金刚乙胺 ,总收率 31.5%。

15. Rimantadine hydrochloride was synthesized from adamantane via bromination, acetylation and addition with formamide followed by hydrolysis.The overall yield was 31.5%.

以金刚烷为起始原料,经溴化、乙酰化、甲酰胺加成和水解反应,制得盐酸金刚乙胺,总收率31.5%。

16. side chain bromination

侧链溴代作用

17. catalytic bromination

催化溴化

18. light bromination

光溴化

19. HPLC analysis of alfatoxins in medicinal herb extracts by immunoaffinity column cleanup and post-column bromination

免疫亲合柱净化HPLC柱后溴衍生化方法检测中药中黄曲霉毒素

20. Keywords C-aryl glycoside;N-bromosuccinimide;ammonium nitrate;bromination;

关键词芳香碳糖苷;N-溴代丁二酰亚胺;硝酸铵;溴化;

21. The oxygenizement reaction and bromination reactions of the process are improved.

其中第二步是以氯仿作溶剂,新洁尔灭作相转移催化剂,在室温下进行反应。

22. This product with Br2 was obtained 2-bromo-4,5-hydroxymethoxybenzaldehyde through bromination.

再溴代得到2-溴-4,5-二甲氧基苯甲醛,收率为91.9%,并分析溴代过程中甲酰基的邻位效应及溴代产物的稳定性。

23. Various methods used for extracting cholesterol from lanolin alcohol such as bromination,chromatography,(molecular) distillation,selective solvent crystallization and complexing were reviewed.

分别对溴化法、色谱法、分子蒸馏法、溶剂选择结晶法和配合法进行了评述。

24. Keywords Hexadecanol;1-Bromohexadecane;nucleophilic substitution;bromination;

十六醇;1溴十六烷;亲核取代;溴代反应;

25. Keywords ethyl trans-cinnamate;bromination;dehydrobromination;catalytic hydrogenation;methylcis-cinnamate;

反式由桂酸乙酯;溴化;脱溴化氢;催化氢化;顺式肉桂酸甲酯;

26. Keywords thiophene;2thiopheneethanol;bromination;grignard reaction;

噻吩;噻吩乙醇;溴化;格氏反应;

27. Keywords thiabendazole;light bromination;2-（dibromine-acetyl）-benzimidazole hydrobromate;

噻苯咪唑;光溴化;2-（二溴乙酰基）-苯并咪唑氢溴酸盐;

28. In cases of doubt the changes following hydrogenation, bromination or other chemical attack upon the double bond can be studied.

在有疑问时可以研究双键的氢化，溴化或其他化学反应所引起的变化。

29. The brominating agent were used instead of luquid bromine in bromination.

在溴代反应中以溴化试剂代替液溴;

30. Under the irradiation of the pulsed IR laser, the bromination of CH_2D_2 in methane is vibrationally enhanced, deuterium is enriched in the bromised products.

在脉冲红外激光辐照下,甲烷中CH_2D_2的溴化反应得到振动强化,在溴化物中富集了氘。

31. Keywords Multi-substituted benzene;Ipso nitration;Ipso bromination;Six-membered cyclic transition state;

多取代苯;自位硝化;自位溴化;六元环环外定位效应;

32. IPSO Nitration and Bromination of the Multi-substituted Benzene

多取代苯的自位硝化和溴化反应

33. exhaustive bromination

完全溴化作用

34. The bromination of 6 methoxy 2 propionylnaphthalene with 1,3 dibromo 5,5 dimethylhydantoin proceeded smoothly, quickly, and gave 5 bromo 6 methoxy 2 propionylnaphthalene with 98.59% yield in alcohol.

室温下,6-甲氧基-2-丙酰基萘和1,3-二溴-5,5-二甲基海因的溴化反应在醇溶剂中,反应速度快、转化率高,生成5-溴-6-甲氧基-2-丙酰基萘的收率高(98.59

35. 5-Fluoro-2,3-dihydrobenzofuran was synthesized from 4-fluorophenol by bromination to give 2-bromo- 4-fluorophenol, which reacted with 1,2-dichloroethane and then cyclized through Grignard reaction in 79% overall yield.

对氟苯酚经溴化制得的邻溴对氟苯酚,与1,2-二氯乙烷反应制得2-(2-溴-4-氟苯氧基)氯乙烷,再经格氏反应制得5-氟-2,3-二氢苯并呋喃,总收率79%。

36. Influencing Factors of the Bromination of Waste Polystyrene

废旧聚苯乙烯溴化反应的影响因素研究

37. A new method of bromination for deactivated aromatics with the potassium bromate and Phosphoric acid system has been reported in the article. Some yield affecting factors have also been discussed.

探讨了用溴酸钾-磷酸体系溴化苯乙酮的溴化新方法，并讨论了影响反应收率的几个因素。

38. The yields for acylation, bromination and hydrolysis were 80.9%, 78.0% and 84.7%, respectively.

探讨优化了酰化反应和溴化反应的反应条件,这三步反应的收率分别为80.9%,78.0%和84.7%。

39. High temperature bromination of octahydropentalene.

文题：Functionalization of saturated hydrocarbons.

40. Methods The target compound was synthesized through bromination and thioetherification from 4-methoxyacetophenone as a starting material.

方法以3-甲氧基苯硫酚和对甲氧基－苯乙酮为原料经溴化、烃基化、环合重排排制得目标产物。

41. Detailed Alkene Determination by Bromination and Gas Chromatography with Atomic Emission detection

气相色谱-原子发射光谱和溴加成法联合测定含烯烃汽油中的单体烯烃

42. Keywords gas chromatography;atomic emission detection;bromination;gasoline;bromoalkane;alkene;group component;

气相色谱;原子发射光谱检测;溴化反应;汽油;溴代烃;烯烃;族组成;

43. Keywords gas chromatography;atomic emission detector;bromination;gasoline;bromoalkane;alkene;group component;

气相色谱;原子发射光谱检测器;溴化反应;汽油;溴代烃;烯烃;族组成;

44. Keywords Oxidative bromination;Activated aromatic compounds;Phase transfer catalyst;Aqueous nitric acid;

氧化溴代;活泼芳烃;相转移催化剂;稀硝酸;

45. Keywords bromination;nitration;methionine;hydrolysis;

溴代;硝化;蛋氨酸;水解;

46. bromination titration method

溴代滴定法

47. Alkene Bromination Used for Detailed Hydrocarbon and Bulk Hydrocarbon Group-Type Analysis of Gasolines Containing Alkenes

溴加成脱烯反应用于含烯汽油单体烃及族组成的分析

48. Keywords brominated butyl rubber;bromination reaction;unsaturated degree;Mooney viscosity;

溴化丁基橡胶;溴化反应;不饱和度;门尼黏度;

49. bromination catalyst

溴化催化剂

50. bromination reaction

溴化反应

51. Keywords bromination;propiophenone;3 chloro propiophenone;6 methoxy 2 propionylnaphthane;6 methoxy 2 acetylnaphthane;4 methoxyacetophenone;acetophenone;cupric bromide;

溴化反应;苯丙酮;间-氯苯丙酮;6-甲氧基-2-丙酰基萘;6-甲氧基-2-乙酰基萘;对-甲氧基苯乙酮;苯乙酮;溴化铜;

52. Bromination takes place less readily.

溴化反应较不易发生。

53. bromination method

溴化法

54. Method for Determination of Residual Chlordimeform in Food by Bromination Gas Chromatography

溴化法气相色谱测定食品中杀虫脒残留量

55. Determination of Phenols in Environmental Water with Bromination Derivatization and Gas Chromatography

溴化衍生气相色谱法测定环境水体中的酚系物

56. Keywords extracting gold agent of bromination;sodium diethyldithiocarbamate;disturbing;

溴法提金液;铜试剂;干扰;

57. Keywords 5-bromo-vanillin;bromination;3;4;5-trimethoxybenzal dehyde;

溴香兰素;溴化反应;3;4;5-三甲氧基苯甲醛;

58. allylic bromination

烯丙位溴化作用

59. ring bromination

环上溴代作用

60. nuclear bromination

环上溴代反应

61. In this article, the content of the remaining monomer in polymethylmethacrylate was determined by gas chromatography with simplicity, convenience, quickness and accuracy via the bromination method.

用气相色谱法测定聚甲基丙烯酸甲酯中残余单体含量。该方法简便、快速、准确,并克服了溴化法易使结果偏高的缺点。

62. Bromination of 5-(4-methyl)benzylidene-thiazolidine-2,4-dione

甲基)亚苄基-噻唑烷-2,4-二酮的溴代反应

63. Keywords methoxy acetyl naphthalene;selective bromination;cupric bromide;methoxy bromoacetyl naphthalene;

甲氧基酰基萘;选择性溴化;溴化铜;甲氧基溴酰基萘;

64. Studies on Bromination Reaction Kinetic of Formic Acid by Potentiometric Determination

电动势法研究甲酸溴化反应动力学

65. Keywords potentiometric determination;chemical kinetics;bromination of formic acid;

电动势测量;反应动力学;甲酸溴化反应;

66. The bromination of elsinochrome A and photosensitivity of its derivatives

痂囊腔菌素A的溴代反应及产物的光敏活性研究

67. Keywords memantine hydrochloride;bromination;hydrolysis;optimization;

盐酸美金刚胺;溴代;水解;优化;

68. direct bromination

直接溴化作用

69. The effects of different solvents, temperatures, concentrations and catalysts on the ratio of p-bromophenol,o-bromophenol and 2,4-dibromophenol in the direct bromination of phenol.

研究了在惰性非极性溶剂和部分惰性极性溶剂中,以苯酚为原料进行直接溴化反应的溶剂效应、温度效应、浓度效应及催化剂的选择效应。

70. m-Bromoanisole was synthesized from nitrobenzene by bromination, reduction, diazotization and hydrolysis to give m-bromophenol followed by solvent-free methylation with an overall yield of 37%.

硝基苯经溴代、还原、重氮化后水解得到间溴苯酚,再在无溶剂条件下用硫酸二甲酯甲基化得到间溴苯甲醚,总收率37%。

71. m-Bromoanisole was synthesized from nitrobenzene by bromination ,reduction,dizotization and methylation with an overall yield of 40%.

硝基苯经过溴化、还原、重氮化、甲基化得到间溴苯甲醚,总收率为40%。

72. The influence of temperature on yield and colour of product in bromination of benzene ring as well as the influence of bromine feeding speed on yield of brominated sidechains were investigated.

考察了反应温度对苯环上溴代产物收率和色泽的影响以及溴素滴加速度对侧链光溴代产物收率的影响。

73. The effect of the solvent on bromination of 6 methoxy 2 acyl naphthalene and 2 methoxyl naphthalene with 1,3 dibromo 5,5 dimethyl hydantoin was studied.

考察了在不同极性溶剂中以 1 ,3 二溴 5,5 二甲基海因作溴化剂对溴化 6 甲氧基 2 酰基萘反应的影响。

74. Keywords binaphthalene;palladium ligand compound;bromination;methylation;di-t-butylchlorophosphine;

联萘;钯配体化合物;溴代;甲基化;二叔丁基氯化膦;

75. Study on Bromination of paeonol

芍药酮的溴化反应

76. Keywords Erucic acid;Oxidation;Esterification;Reduction;Bromination;Condensation;Cyclization;Cycloheptadecanone（Dihydrocivetone）;

芥酸;氧化;酯化;还原;溴代;缩合;环化;环十七酮（二氢灵猫酮）;

77. Keywords erucic acid;esterification;reduction;oxidation;bromination;cyclization;cyclotridecanolide;

芥酸;酯化;还原;氧化;溴代;成环;环十三内酯;

78. Keywords Acetophenone;Potassium bromate;Bromination;Hypobromous acid;

苯乙酮;溴酸钾;溴化;次溴酸;

79. Keywords 2-（3-benzoylphenyl）propionitrile;m-methyl benzoic acid methyl ester;bromination;

苯甲酰基苯基）丙腈;间甲基苯甲酸甲酯;溴化;

80. Effects of Orientation in the Direct Bromination of Phenol

苯酚直接溴化的定位效应