查询词典 ether

The results of AD reactions are as follows:(1) When the AD reaction of eight olefins was performed at 0.5mo1% OsO〓 and 2mol% ligand 8 in PEG/NMO system, the diols were obtained in 78～90% yields and 78～96% ees (except for trans-5-decene and ally naphthyl ether).

催化结果如下：(1)在PEG/NMO体系中，将配体8用于八种烯烃的AD反应，配体、OsO〓和底物的摩尔比为0.02/0.005/1时，化学产率为78～90％，除反式-5-癸烯和萘基烯丙基醚较低外，其它六种烯烃的相应二醇产物的ee值为78～96％。

The urine of experimental animals was collected using metabolic cages once a week for 12h. The mice were sacrificed under ether narcotization 14 days after the injection of NTS. Sera and kidney tissues were obtained at sacrifice.

小鼠每周一次使用特制新陈代谢器收集12小时尿液，并在注射肾毒血清二周后用乙醚麻醉，全数牺牲以采集血清及肾脏组织。

Basic drugs, lidocaine, benghexolum, chlorpromazine, diazepam, clozapine, internal standard of SKF525A(all of 5μg), estazdam and alprazolam (all of 10μg), are extracted from superfatted necrogenic tissues with mixture reagents of ethyl acetate and diethyl ether under basic condition, and determined by gas chromatography with nitrogenphosphorus detector.

在高度腐败及脂肪较多的脏器中加入碱性药物利多卡因、安坦、氯丙嗪、安定、氯氮平及内标物SKF_525A各5.0μg，舒乐安定、佳静安定各10.0μg，在碱性条件下用乙酸乙酯与乙醚混合液提取，经GC/NPD分析。

Three groups of patients received different interventions under the prerequisites of routine medications including blood-activating and stasis-eliminating, neurotrophy, and vasodilator patients of nitric ether group received oral administration of isosorbide dinitrate or glycerin trinitrate; patients of calcium antagonist group received oral administration of Sibelium or Novarsc; and patients of no specific medication group did not receive any preventive medicine.

对192例行高压氧治疗的3组患者在常规使用活血化瘀、神经营养、血管扩张剂等药物的前提下，硝酸酯类组口服消心痛或硝酸甘油，钙拮抗剂组口服西比灵或络活喜等，未特殊用药组则没有预防性使用药物。

The electron impact mass spectra of noncyclic crown ether s with heterocyclic methmazole as terminal groups 1a￣4a and fo were given and discussed in the present article.

本文给出以杂环甲巯咪唑为端基的非环冠醚1a～4a及1a的异构体1b的电子轰击质谱并讨论之。

Benzene perfluorous nonene ether was prepared by the reaction of perfluo-rous nonene (C9F18) and phenol,and the molecular structure of which was identified by IR and NMR spectra.

以全氟壬烯、苯酚和氯磺酸为主要原料，经醚化、磺化和中和反应制备对全氟壬烯氧基苯磺酸表面活性剂，用红外光谱和19FNMR，1HNMR对分子结构进行了表征。

It achieves a certain extent effect of waterproof and oilproof. 3. Test the change of surface ingredient before and after the fluoridized of the FRP usingthe reflecting method of infrared spectrum. Then dip the fluoridized FRP in the cold water, warm water and petroleum ether for about half an hour, and surface ingredient havent changed too much.

用红外光谱反射法测试了经含氟物处理前后的玻璃钢表面结构变化，并且分别测试了在冷水、温水、石油醚中浸泡洗涤半个小时后的表面含氟处理的玻璃钢的表面结构，发现其表面结构与浸泡前无大的变化。

Androstenedione and dehydroepiandrosterone as a new steroid material attracts people's attention because of the shortage of diosgenin resource and successful synthesis of AD by degradation of sterols. The followings were included in this thesis: 1. 24 new oxime-ether and oxime-ester compounds from AD were synthesized by cleavage of A-ring through NaIO_4/KMnO_4 oxidation, ring closure by amination, oximation with hydroxylaminechloride in C-17 position.

甾体药物的合成原料一般为薯蓣皂素、剑麻皂素、番麻皂素等，随着薯蓣资源日渐枯竭，使得甾体药物工业不得不寻求新的原料，而微生物降解胆固醇和植物甾醇合成雄烯二酮获得成功，使得AD成为新兴的甾体原料吸引了人们的注意。

The intermediate which obtained from oximation of 7a-e reacted withmethyl N-(2-bromomethylphenyl)-N-methoxycarbamate to synthesize oxime ether methyl carbamate 3a-e.

以邻位卤代苯甲醛和3-丁烯-2-醇为原料通过钯催化&一锅法&反应合成了2-乙酰基茚7a-e，7a-e 肟化之后和N-(2-溴甲基苯基)-N-甲氧基氨基甲酸甲酯反应合成了肟醚类氨基甲酸甲酯3a-e，进一步胺解之后得到了肟醚类氨基甲酰甲胺3f-j。

The calculated results indicate that the energy bathers for the formation of dimethyl ether and trimethyl oxonium ion inside HSAPO-34 zeolite are 1.68 and 0.93 eV, respectively. The suggested intermediate oxonium ylide is very unstable and the energy barriers for the formation of C-C bond are over 3.0 eV by concerted pathway.

结果表明，二甲醚和三甲基氧鎓离子在HSAPO-34分子筛上的生成能垒分别为1.68和0.93eV，中间体氧鎓叶立德不能稳定存在，同时表明C-C键通过协同反应形成的能垒均超过3.0ev。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。