查询词典 hydroxy-acetophenone

In the second part of the thesis, we discussed a L-proline-catalyzed direct Aldol reaction between L-amino acid-derived N,N-dibenzyl -amino aldehydes 15 and acetone, cyclopentanone or hydroxyacetone, which afforded (-amino--hydroxy- or (-amino-,(-dihydroxy-ketones in good to excellent yields (up to 94%) and diastereoseletivities (up to 94.9%).

发现许多情况下，反应的产率和de值超过90%。接着，在碱性条件下，我们将L-亮氨酸衍生的N，N-二苄基--氨基醛15g与羟基丙酮反应得到的主要产物(，-二羟基-γ-氨基酮171d与次溴酸钠反应，得到了具有抗肿瘤活性的天然产物PM-94128的氨基酸片断184。

The contents of exceedingly weak diabasic alkalies such as sodium DL Hydroxy Succinic acid , sodium citric acid and sodium adipic acid were detected by using the standard curve method.

用标准曲线法测定了极弱二元碱：苹果酸钠、酒石酸钠、柠檬酸钠的含量。

We have initially examined organocatalytic enantioselective synthesis ofα-Hydroxy phosphonates through the reaction of dialkyl phosphates and aldehydes.

我们初步实验了对映选择性的有机催化二烷基亚磷酸酯和醛的反应不对称合成α-羟基膦酸酯。

Three series of segmented polyurethanes were synthesized, which are based on 4,4'-methylene-di, N-methyl diethanolamine and hydroxy terminated poly-butadiene, poly or poly.

本文讨论了以聚环氧乙烷、聚环氧丙烷以及聚丁二烯为软段，以4，4'-二异氰酸二苯甲烷和N，N-二羟乙基甲胺为硬段的链段型聚氨酯的合成。

Because of the colon, prostate, breast and some other organizations may have enzymatic functioning mechanisms, they can be 25 hydroxy vitamin D into 1,25 dihydroxy vitamin D, which is a powerful hormone regulating cell proliferation, and may restrictions on certain types of cancer metabolic activity.

因为结肠、前列腺、乳腺和其他一些组织可能拥有酶促运转机制，它们能将25羟维生素D转化成1，25二羟维生素D，后者是一种强有力的调节细胞增殖的激素，并且可能限制某些癌症的代谢活性。

GC-MS analysis indicated that the major degradation intermediate products were hydroxy, dihydroxy and carboxylic derivatives of DMP and DEP.

DMP和DEP经过Fenton/UV氧化降解，通过乙醚萃取水相中有机化合物，再通过GC-MS分析，检测出了许多中间产物。

The new synthetic technology of some important anthraquinone intermediates derived from 1-amino- anthraquinone, l-amino-4-hydroxy-anthraquinone, l-amino-4-bromo- anthraquinone-2-sulfonic acid, 1,5- and 1,8 dinitro- anthraquinone, have been studied.

本文研究了几种重要的由1-氨基蒽醌衍生的蒽醌型中间体：1-氨基-4-羟基蒽醌、1-氨基-4-溴蒽醌-2-磺酸和1，5-及1，8-二硝基蒽醌的合成化学，在此基础上开发了上述中间体的合成新技术。

The new synthetic technology of some important anthraquinone intermediates derived from 1-amino- anthraquinone, l-amino-4-hydroxy-anthraquinone, l-amino-4-bromo- anthraquinone-2-sulfonic acid, 1,5- and 1,8 dinitro- anthraquinone, have been studied.

本文研究了几种重要的由1-氨基蒽醌衍生的蒽醌型中间体：1-氨基-4-羟基蒽醌、1-氨基-4-溴蒽醌-2-磺酸和1，5-及1，8-二硝基蒽醌的合成化学，在此基础上开发了上述中间体的合成新技术。现行1-氨基-4-羟基蒽醌的生产技术是从1-氨基蒽醌出发，经二溴化再水解制得，溴的耗量在1.5mol以上。

Hydroxy-5, 10-dihydrophenophosphazine 10-oxide (1) reacted with SOCl2, and then with MeONa in MeOH to give a methyl phosphinate (2) which can be converted to a dinitro compound 3 (62%) by nitration and the resulting dinitro compound 3 can further be converted to 2, 8-diamino-10-methoxy-5, 10-dihydrophenophosphazine 10-oxide (4, 71%) by hydrogenation over Pd/C (w = 0.05). And the effect of amount of Pd/C (w = 0.05) on the reduction was also studied.

10－羟基－5，10－二氢磷杂吖嗪－10－氧化物（1）经醯氯化、甲基化得到10－甲氧基－5， 10－二氢磷杂吖嗪－10－氧化物（2），2经硝化得到10－甲氧基－2，8－二硝基－5，10－二氢磷杂吖嗪－10－氧化物（3，62%）。3在Pd／C（w = 0.05）存在下，用氢气还原为2，8二氨基－10－甲氧基－5，10－二氢磷杂吖嗪－10－氧化物（4，71%），考察了Pd／C（w = 0.05）用量对氢化还原反应的影响。

Using diphase emulsion to make bovine albumin microcapsuals with hydroxy proprl methyl celluloxe phthalate and CMC-Na,Gelatine,chitosan as dispersed phase;Designing test with single factors method and studying effection of the wrap material,reagent of emulsification,hydrophilic colloid of protection...

分别用羧甲基纤维素钠、明胶、壳聚糖作分散质，复相乳液法制备HPMCP的BSA微胶囊；采用单因子设计试验，研究了壁材、乳化剂、分散质浓度对微胶囊包裹量的影响。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。