溴丙酮

基本解释 (translations)

bromacetone  ·  bromoacetone

与溴丙酮相关的网络例句 [注：此内容来源于网络，仅供参考]

While the adsorptions of 1-propanol and 1-Br-propane at 100℃ give rise to 1-propoxy species, which mainly converted to propanal at higher temperature. IR spectrum arising from the interaction of propene with the catalyst at 100 ℃ shows the IR bands of allyl alcoholate and isopropoxy species. As the temperature was increased to 150℃, the bands ascribable to the adsorbed acetone and acrolein were observed. Based on these results, it is suggested that isopropoxy species is one of the intermediates for SOP to acrolein over MoPO/SiO〓 catalyst.

2原位IR光谱实验结果表明：200℃时丙烷/O〓混合气在催化剂表面吸附后的IR谱与同温度下异丙醇吸附的IR谱相似，均检测到吸附态丙酮物种和丙烯醛物种的IR谱峰；溴代异丙烷和异丙醇在催化剂表面吸附后均转化为异丙氧基，异丙氧基主要转化为丙烯和丙酮，丙烯进一步转化为丙烯醛；溴代正丙烷和正丙醇在催化剂表面吸附后均转化为正丙氧基，正丙氧基主要转化为丙醛；丙烯在催化剂表面吸附后转化为σ-氧烯丙基和异丙氧基，升温后σ-氧烯丙基转化为丙烯醛而异丙氧基转化为丙酮。

While the adsorptions of l-propanol and 1-Br-propane at 100 癈 give rise to 1-propoxy species, which mainly converted to propanal at higher temperature. IR spectrum arising from the interaction of propene with the catalyst at 100 癈 shows the IR bands of allyl alcoholate and isopropoxy species. As the temperature was increased to 150 癈, the bands ascribable to the adsorbed acetone and acrolein were observed. Based on these results, it is suggested that isopropoxy species is one of the intermediates for SOP to acrolein over MoPO/SiO2 catalyst.

原位IR光谱实验结果表明：200℃时丙烷／O_2混合气在催化剂表面吸附后的IR谱与同温度下异丙醇吸附的IR谱相似，均检测到吸附态丙酮物种和丙烯醛物种的IR谱峰；溴代异丙烷和异丙醇在催化剂表面吸附后均转化为异丙氧基，异丙氧基主要转化为丙烯和丙酮，丙烯进一步转化为丙烯醛；溴代正丙烷和正丙醇在催化剂表面吸附后均转化为正丙氧基，正丙氧基主要转化为丙醛；丙烯在催化剂表面吸附后转化为σ-氧烯丙基和异丙氧基，升温后σ-氧烯丙基转化为丙烯醛而异丙氧基转化为丙酮。

A novel method for the determination of trace bromate in water is proposed which employ GC-ECD. The derivative process with acetylacetone is optimized.

研究了用GC-ECD测定水中痕量溴酸盐浓度的方法，优化了用工程丙酮作溴酸根衍生化试剂的反应条件。

Including high-purity synthetic hydrobromide, hydrogen bromide acetic acid solution, hydrogen bromide acetone \ dichloromethane solution, sodium bromide, calcium, ammonium and other inorganic bromide, Bromochloromethane second bromomethane, 1 - bromo --3 - chloropropane organic bromide.

包括高纯度合成氢溴酸、溴化氢醋酸溶液、溴化氢丙酮\二氯甲烷溶液、溴化钠、钙、铵等无机溴化物，溴氯甲烷、二溴甲烷、1-溴-3-氯丙烷等有机溴化物。

Macerate 1.0g of the powdered sample with 20.0 ml of chloroform plus 0.3ml of 25％ NH_4 OH in a glassstoppered flask overnight.

本文报道用不含粘合剂的氧化铝薄层，以二甲苯-丙酮-无水乙醇-二乙胺(50：40：10：0.6)为展开剂分离茄科植物中的莨菪碱、东莨菪碱、山莨菪碱、樟柳碱及红古豆碱等五种莨菪烷生物碱，用改良Dragendorff试剂-Wagner试剂(1：1)显色，定量收集莨菪碱、东莨菪碱及山莨菪碱的斑点，莨菪碱和东莨菪碱用氨甲醇洗脱，蒸干洗脱液后分别用pH 5.6及pH 4.5的溴甲酚绿溶液作比色测定；山莨菪碱用4％醋酐氯仿洗脱，蒸干洗脱液后用pH 5.6的溴甲酚绿溶液作比色测定。

Bromination of 4-chloropropiophenone with Br2 in AcOH gives a-bromo-4-chloropropiophenone in 98% yield.

乙酸中用液溴溴化对氯苯丙酮得到α-溴代对氯苯丙酮，收率98%。

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％。

Pyruvaldehyde was synthesized with acetone or 1,2 propanediol as starting material respectively.With n∶n=1 00∶0 79,3 0-4 0 g potassium chlorate as catalyst,and water and glacial acetic acid as solvent,refluxing on water bath of 60-75 ℃ for 4 h,bromoacetone was obtained in 63 5% yield.

分别用丙酮和 1，2 丙二醇做原料合成了丙酮醛。n∶n =1 0 0∶0 79，加入 3 0～4 0g氯酸钾做催化剂，水和冰醋酸做溶剂，水浴温度为 6 0～ 75℃，回流 4h ，制得产率为 6 3 5 %的溴丙酮。V∶V =11 9∶1 0 ，通入空气，在 6 5～ 70℃反应 5～ 8h ，制得产率为 5 9 6 %的丙酮醛。

The related feature of tribromide quaternary ammonium salt as selective bromide reagent was investigated by the reaction of acetophanone, propanone, phenol with self-made benzyl triethyl tribromide quaternary ammonium salt.

首次通过自制的苄基三乙基三溴季铵盐与苯乙酮、丙酮、苯酚等的反应，研究了三溴季铵盐作为选择性溴化剂的相关性能。

Their structures were characterized by IR, 1H NMR, of which 4-chloro- 2-methyl-7-(2-bromoethoxy) isoflavone, 2, 4\'-dimethyl-7-(2-bromo-ethoxy)isoflavone and 2-methyl-7-(2-bromoethoxy) isoflavone are rarely reported so far.4\'-chloro-2-methyl-7-(3-bromopropoxy)isoflavone, 2, 4\'-dimethyl-7-(3-bromo- propoxy) isoflavone, 2-methyl-7-(3-bromopropoxy) isoflavone, 4\'-methoxy-2-methyl-7-(3-bromopropoxy) isoflavone and 4\'-hydroxy-2-methyl-7-(3-bromopropoxy) isoflavone were gained by reacting 7-hydroxy-2-methyl isoflavone derivatives with 1, 3-dibromo- propane, respectively.

第三章(来源：73ABC论文网www.abclunwen.com)在丙酮溶液中以K_2CO_3为碱，使溴乙氧基异黄酮和溴丙氧基异黄酮与咪唑偶合，以较高的产率合成出10种目标化合物：2-甲基-4′-氯-7-2-(1-咪唑基乙氧基异黄酮、2，4′-二甲基-7-2-(1-咪唑基乙氧基异黄酮、2-甲基-7-2-(1-咪唑基乙氧基异黄酮、2-甲基-4′-甲氧基-7-2-(1-咪唑基乙氧基异黄酮、2-甲基-4′-羟基-7-2-(1-咪唑基乙氧基异黄酮、2-甲基-4′-氯-7-3-(1-咪唑基丙氧基异黄酮、2，4′-二甲基-7-3-(1-咪唑基丙氧基异黄酮、2-甲基-7-3-(1-咪唑基丙氧基异黄酮、2-甲基-4′-甲氧基-7-3-(1-咪唑基丙氧基异黄酮、2-甲基-4′-羟基-7-3-(1-咪唑基丙氧基异黄酮，经IR、~1H NMR、~(13)C NMR、元素分析等对其结构进行了表征，10种目标产物均未见文(来源：ABC论文cccccc网www.abclunwen.com)献报道。

与溴丙酮相关的网络解释 [注：此内容来源于网络，仅供参考]

acetone chloroform：[医] 丙酮氯仿

1318acetone-bromofone[医] 丙酮溴仿 | 1319acetone-butyl alcohol fermentation[化] 丙酮丁醇发酵 | 1320acetone-chloroform[医] 丙酮氯仿

brolly：洋伞

broker 侩 | brolly 洋伞 | bromacetone 溴丙酮

bromal：普乐麻

bromacetone 溴丙酮 | bromal 普乐麻 | bromaniline 溴苯胺

methylene bromide：甲文二溴

Methylbutylcetone 甲、丁基(磷)丙酮 A1 HM | Methylene bromide 甲文二溴 A1 HM | Methylene chloride 甲文二氯 A1X HM

acetylacetone：乙酰丙酮

研究了乙酰丙酮(acetylacetone)改性正丁醇锡(tin alkoxide)在氢氟酸、盐酸、氢溴酸、硝酸、乙酸和氨催化剂作用下的溶胶-凝胶体系的动力学过程.利用近似线性聚合生长模型求出了不同催化剂作用下改性醇盐的平均缩合反应速率以及溶胶团簇的平均官能度,

benzalacetophenone dibromide：亚苄基乙酰苯化二溴

benzalacetone | 苯亚甲基丙酮 | benzalacetophenone dibromide | 亚苄基乙酰苯化二溴 | benzalacetophenone | 亚苄基乙酰苯

bromacetone：溴丙酮

brolly 洋伞 | bromacetone 溴丙酮 | bromal 普乐麻

bromacetone：溴丙酮 溴丙酮

brokeragebusiness 经纪人行业 经纪人行业 | bromacetone 溴丙酮 溴丙酮 | bromacil 除草定

bromoacetone：溴丙酮

Bromo Thluene 溴甲苯 B2 FFM | Bromoacetone 溴丙酮 A2 FFM | Bromobenzene 溴苯 A2 FFM

Allyl isothiocyanate, inhibited：異硫氰酸丙烯酯,加抑制劑

331 松節油 Turpentine | 332 異硫氰酸丙烯酯,加抑制劑 Allyl isothiocyanate, inhibited | 333 溴丙酮 Bromoacetone