查询词典 chloro-acetophenone

Firstly, cotton cellulose was basified and aged to alkali cellulose, then samples reacted with 3-Chloro-2-Hydroxypropylurea to produce 3-Creido-2-Hydroxypropyl cellulose.

将棉纤维进行碱化、老化处理，所得到的碱纤维再与中间体3-氯－2-羟丙基脲反应制得3-脲基－2-羟基丙基纤维素。

Chloro 2 hydroxypropyl trimethyl ammonium chloride an etherizing agent ,for modified starch, was synthesised from epichlorohydrin.

以环氧氯丙烷为原料合成了 3-氯- 2 -羟丙基基三甲基氯化铵，后者作为改性淀粉的醚化剂。

CrO-Y2O3catalysts were prepared by a deposition-precipitation method and tested by fluorinating 2-chloro-1,1,1-trifleuoroethane (HCFC-133a) to synthesize 1,1,1,2-tetrafluoroethane (HFC-134a).

用沉积－沉淀法制备了CrO-Y2O3催化剂，考察焙烧气氛及温度对1，1，1-三氟－2-氯乙烷(HCFC-133a)气相氟化合成1，1，1，2-四氟乙烷(HFC-134a)催化性能的影响。

Under catalysis of AlCl3, trans-1-chloro-3-phenyl-1-propen-3-one was first prepared using benzoyl chloride and acetylene in CH2Cl2 at 20~25℃, which the yield is 7% higher than that in CCl4 at 40~45℃.

通过对其反应条件的研究，首次用苯甲酰氯和乙炔在三氯化铝作用下合成出反－3-苯基－1-氯－1-丙烯－3-酮；并发现用二氯甲烷作介质在20~25℃下的反应产率，比用四氯化碳作介质在40~45℃下的反应产率约高7%。

We are a wellknown producing base of dye intermediates. The main products:2,4-Dinitrochlorobenzene, 6-Bromo-2,4-Dinitroaniline,6-chloro-2,4-Dinitroaniline,2-Amino-4-Nitrophenol, 2,4-Dintrophenol, 2,4-Dinitroaniline, and so on.

我们是国内有名的染料中间体生产基地，主要产品2，4-二硝基氯苯、6-溴-2，4-二硝基苯胺、6-氯-2，4-二硝基苯胺、2-氯基-4-硝基苯酚、2，4-二硝基苯酚。

This order is basically in line with the decrease of chloro-content of the adsorbents from PVC to SP.

该次序基本上与从聚氯乙烯到固体石蜡吸附剂中氯含量逐渐降低的次序相一致。

The phosphines such as 〓, dppm bis(diphenylphosphinemethane, dppebis(diphenylphineethane and dppp bis(diphenylphosphinrpropaneare chosen for study. The chloro alkane, bromide alkane and acetone arechosen as solvents.

选择有机单膦〓和双膦配体dppm二(二苯基膦甲烷、dppe二(二苯基膦乙烷、dppp二(二苯基膦乙烷与〓反应，选择氯代烷、溴代烷和丙酮为反应溶剂。

An important intermidiate 2-butyl-4-chloro-5-(4-bromomethyl phenoxy) pyridazinone 3 was first obtained from 4,5-dichloropyridazinone using two different methods. Compounds 4a～4l were synthesized by the reaction of 3 with different oximes.

从2-叔丁基-4，5-二氯哒嗪酮出发，以两种方法合成了中间体2-叔丁基-4-氯-5-(4-溴甲基苯氧)哒嗪酮(3)。3与肟反应合成了含哒嗪酮的苄基肟醚类化合物4a～4l。

The effects of organic solvent, temperature and water activity were also investigated in PS IM catalyzed tranesterification of 2-chloro-1-phenylethanol with vinyl acetate.

并系统探讨了溶剂体系，温度以及水活度对PS IM催化拆分2-氯-1-苯乙醇的影响。

Chlorinated compounds, such as the chloro fluorocarbons used in refrigeration and air conditioning, also contribute to global warming, as well as damaging the stratospheric ozone that protects us from cancer-causing ultraviolet radiation in sunlight.

氯化化合物，如冰箱和空调中使用的碳氯氟化合物，对全球变暖有影响，也破坏同温层中保护我们免受阳光中致癌紫外线辐射的臭氧

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。

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