乙酰溴
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Ophenyl phenol,ophenyl phenol sodium salt tetrahydrate,7ADCA,2ethyl phenyl hydrazine hydrochloride,2,3dihydrofuran,7ethyl3(2hydroxy ethyl)indole,methyl ester of etodolac; 1,8diethyl1,3,4,9tetrahydropyrano[3.4b] indole1acetic acid methyl ester,5chloro2methoxy benzoic acid,4(2aminoethyl)benzene sulfonamide,5cyano phthalide,phthalhydrazide,9thioxanthenone,n[(1,4benzodioxane2yl)carboxyl]piperazine HCL,2chloro4amino6,7dimethoxyquinazoline,2chloro benzimidazole,1(4fluorobenzyl)2chlorobenzimidazole,2methylthio4pyrimidone,5amino4imidazole carboxamide HCL,6chloro2hexanone,11oxo6.11hydrodibenzothiepin,6,11dihydrodibenzooxepin11one,10,11dihydrodibenzocyclohepten5one;dibenzosuberone,dibenzo cyclohepten5one;dibenzosuberenone,3,5dihydroxy benzoic acid,3,5dihydroxy benzyl alcohol,2mercapto benzimidazole,3,4dihydroxy benzaldehyde,3,4dihydroxy benzonitrile,2amino5chloro benzonitrile,2(4chlorophenoxy)ethyl chloride,2(4chloro phenoxy)tert,butane,ditrimethylol propane;DTMP,2,2bis(4hydroxyphenyl)butane; bisphenol B,1,1'bis(4hydroxyphenyl)cyclohexane;bisphenol Z,tetrabromobisphenolS,3,5ditertbutyl salicylic acid,3,4,5trihydroxy benzoic acid stearyl ester,1,2,4trimethoxybenzene.
华业公司产品:邻苯基苯酚,邻苯基苯酚钠盐,7氨基3去乙酰氧基头孢烷酸,邻乙基苯肼盐酸盐,2,3二氢呋喃,7乙基色氨醇,依托度酸甲酯,5氯2甲氧基苯甲酸,4(2氨乙基)苯磺酰胺,5氰基苯酞,双酮酞嗪,9噻吨酮,N〔(1,4苯并二恶烷2基)羰基〕哌嗪盐酸盐,2氯4氨基6,7一二甲氧基喹唑啉,2氯苯并咪唑,1(4氟苄基)2氯苯并咪唑,2甲硫基4嘧啶酮,5氨基咪唑4 甲酰胺盐酸盐,6氯2已酮,11氧6.11二氢苯并〔b.c〕虑平,11氧代6,11二氢二苯并氧杂卓,10,11二氢二苯并环庚烯5酮,二苯并环庚烯5酮,3,5二羟基苯甲酸,3,5二羟基苯甲醇,2巯基苯并咪唑,3,4二羟基苯甲醛,3,4二羟基苯腈,2氨基5氯苯腈,2(4氯苯氧基)1氯乙烷,2(4氯苯氧基)叔丁烷,双丙烷,2,2二(4羟基苯基)丁烷;双酚B,1,1'双(4羟基苯基)环己烷;双酚Z,2[3,5二溴4(2,3二溴丙氧基)]苯砜,3,5二叔丁基水杨酸,3,4,5三羟基苯甲酸十八烷基脂,1,2,4三甲基氧基苯。
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A selective and mild PS-DIB/ionic-liquid immobilized TEMPO catalytic oxidation procedure of alcohols to the corresponding aldehydes and ketones in ionic liquid BF4 at room temperature was developed. The oxidant PS-DIB was prepared via Iodation and acetylation of polystyrene resin. For the preparation of the ionic-liquid immobilized TEMPO catalyst, 4-(2,2,6,6-Tetramethyl-1-oxyl-4-piperidoxyl)butyl bromide was first synthesized from 2,2,6,6-tetramethyl-piperidin-4-ol-N-oxyl and 1,4-dibromobutane.
将聚苯乙烯树脂先碘化再乙酰基化,制得了负载型二乙酰氧碘苯(diacetoxyiodo polystyrene,PS-DIB)作为氧化剂。2,2,6,6-四甲基-N-氧自由基哌啶醇(2,2,6,6-tetramethyl-piperidin-4-ol-N-oxyl,TEMPO)与1,4-二溴丁烷反应生成4-溴丁氧基-2,2,6,6-四甲基-哌啶-1-氧化物,再与N-甲基咪唑发生季铵化反应,生成的溴化季铵盐与四氟硼酸钠进行离子交换制得氟硼酸型2,2,6,6-四甲基-N-氧自由基哌啶负载离子液体TEMPO-IL。
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The synthesis of l-(4-acetylaminophenyl)-2-bromo-1-propanone was discussed, and the mechanism and possible factors were analyzed. Hence the routine was determined, in which l-(4-acetylaminophenyl)- 1-propanone was reacted with Bromine dissolved in ethanol, so that the a -bromination can be carried on, resulted in the yield of up to 70.4%.
探讨了1-(4-乙酰胺基苯基)-2-溴代-1-丙酮的合成方法,分析了反应机理和影响因素,确定将1-(4-乙酰氨基苯基)-1-丙酮溶解在乙醇中以溴的乙醇溶液进行α-溴化的合成路线,产率可达70.4%。
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When bromine was used to bromization reaction with 4-acetyl-guaiacol,the product bromide incompletely or super bromide partial,and the selectivity was poor.
使用单质溴与4-乙酰基愈创木酚进行溴化反应时,产物溴化不完全,或者局部过量的溴化,且选择性较差。
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The α-monobromination of 2-pentone,4-methyl acetophenone,4-methoxyacetophenone,6-methoxy-2-acetylnaphthane,2,2,5,5-tetramethyl-3-hexanone,cyclooctanone,cyclododecanone with respectively,were studied.
研究了离子液体三溴化1-丁基-3-甲基咪唑[Br3]对2-戊酮、4-甲基苯乙酮、4-甲氧基苯乙酮、6-甲氧基-2-乙酰基萘、2,2,5,5-4-甲基-3-己酮、环辛酮、环十二酮、丁醛等羰基化合物的α-溴化反应。
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Deoxybenzoin(3) was prepareded by using the resorcinol and substituted phenylacetic as starting meterials in microwave-mediated.Then the compound(3) was reacted with acetic anhydride to produce(4).The compound(4) was hydrolyzed to convert compound(5) in the acid-mediated. The compound(5) was reacted with the 1,2-dibromo-ethane and 1,3-dibromo-propane in refluxed condition with acetone as solvent to give(6) or(7),respectively.Lastly,the title compounds were synthesized by refluxing(6) or(7) with 2-methyl-benzimidazole and potassium carbonate in acetone solution.
以取代苯乙酸和间苯二酚为起始原料,用微波辐射法合成脱氧安息香(3),(3)与乙酸酐缩合生成2-甲基-7-乙酰氧基异黄酮(4),(4)在酸性条件下水解生成相应的异黄酮(5),化合物(5)分别与1,2-二溴乙烷和1,3-二溴丙烷反应生成(6)和(7),化合物(6)和(7)再分别与2-甲基苯并咪唑偶合生成目标化合物。
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In the first part, five new 4-acyl pyrazolone 4-ethyl-thiosemicarbazones compounds: 1-Phenyl-3-methyl-4-(4-bromo)benzal-pyrazol-5-one N(4)-ethyl-thiosemicarbazone (PM4Br BP-ETSC), 1-Phenyl-3-methyl-4-(4-methyl)benzal-pyrazol-5-one N(4)-ethyl-thiosemicarbaz -one (PM4MBP-ETSC), 1-Phenyl-3-methyl-4-benzal-pyrazol-5-one N(4)-ethyl-thiosemicarba -zone, 1,3-diphenyl-4-benzal-pyrazol-5-one N(4)-ethyl-thiosemicarbazone and 1-Phenyl-3-methyl-4-phenylacetyl-pyrazol-5-one N(4)-ethyl-thiosemi -carbazone have been synthesized and characterized by elemental analyses, IR, 1H NMR spectra and single-crystal XRD.
第一部分合成了五个4-酰基吡唑啉酮缩4-乙基-氨基硫脲化合物:1-苯基-3-甲基-4-(4-溴)苯甲酰基-5-吡唑啉酮缩4-乙基-氨基硫脲(PM4BrBP-ETSC),1-苯基-3-甲基-4-(4-甲基)苯甲酰基-5-吡唑啉酮缩4-乙基-氨基硫脲(PM4MBP-ETSC),1-苯基-3-甲基-4-苯甲酰基-5-吡唑啉酮缩4-乙基-氨基硫脲,1,3-二苯基-4-苯甲酰基-5-吡唑啉酮缩4-乙基-氨基硫脲和1-苯基-3-甲基-4-苯乙酰基-5-吡唑啉酮缩4-乙基-氨基硫脲,其中前四个具有光致变色性质。
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In this paper, the improvement of synthetic method of 2-acetylaminotropone is introduced. 3-Acetyltropolone reacted with low concen-tration methylamine solution and solvent was directly evaporated in reduce pres-sure to give 2-acetyl-7 -methylaminotropone in good yield. The compound reacted with phenyltrimethylammonium tribromide to give two new compounds.
本文介绍2-乙酰基-7-甲胺基酮合成方法的改进——用挥发性小的低浓度甲胺溶液与3-乙酰基酚酮反应;和采用直接减压蒸除溶剂法分离产品,得到较好产率的2-乙酰基-7-甲胺基酮;用化合物与三溴化苯基三甲铵反应,得到两种至今未见文献报道的新化合物。
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Base played a crucial role in this reaction: in the Pd2/L1 catalyzed α-arylation of ethyl malonate, K3PO4 is the base of choice; in the α-arylation of ethyl acetoacetate, K2CO3 is the most effective base.
在这类催化反应中,碱的选择具有重要的影响:以K3PO4为碱, Pd2/L1催化体系在丙二酸二乙酯的α-芳基化中,富电子溴代芳烃显示较好的活性; Pd2/L1催化的乙酰乙酸乙酯α-芳基化时,以 K2CO3为碱,催化体系显示较好的活性,这个催化体系可控制反应得到α-芳基乙酰乙酸乙酯,而不是脱乙酰基的产物。
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Base played a crucial role in this reaction: in the Pd2/L1 catalyzed α-arylation of ethy malonate, K3PO4 is the base of choice; in the α-arylation of ethyl acetoacetate, K2CO3 is the most effectiv base.
在这类催化反应中,碱的选择具有重要的影响:以K3PO4为碱,Pd2/L1催化体系在丙二酸二乙酯的α-芳基化中,富电子溴代芳烃显示较好的活性;Pd2/L1催化的乙酰乙酸乙酯α-芳基化时,以K2CO3为碱,催化体系显示较好的活性,这个催化体系可控制反应得到α-芳基乙酰乙酸乙酯,而不是脱乙酰基的产物。
- 推荐网络例句
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For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether
年美国个人破产法的一个改动使得破产登记急速下降,而后引起了信用卡大规模的亏损。
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Eph. 4:23 And that you be renewed in the spirit of your mind
弗四23 而在你们心思的灵里得以更新
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Lao Qiu is the Chairman of China Qiuyang Translation Group and the head master of the Confucius School. He has committed himself to the research and promotion of the classics of China.
老秋先生为中国秋阳翻译集团的董事长和孔子商学院的院长,致力于国学的研究和推广。