溴化氢的
- 与 溴化氢的 相关的网络例句 [注:此内容来源于网络,仅供参考]
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The carbonylation of allyl bromide and hydrogenation of 1-octene were carried out under atmospheric pressure and at 40℃.
研究了它们在烯丙基溴的常压羰基化反应和1-辛烯的常压加氢反应中的催化性能。
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However, the sulfonate CF3CFBrOCF2CF(CF3)O(CF2)2SO3Na reacted with sodium dithionite to give only the hydrodebromination product.
7的水解产物CF3CFBrOCF2CF(CF3)O(CF2)2SO3Na(11)与连二亚硫酸钠反应只得到氢化脱溴产物。
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Formylation and diformylation of dithieno [2,3-b:3',2'-d] thiophene were prepared by two methods. Firstly, aromatic carbanions were prepared by 1 Br/Li exchange of bromo dithieno[2,3-b:3',2'-d]thiophene with n-BuLi in THF at low temperature; 2 deprotonation of dithieno[2,3-b:3',2'-d]thiophene with LDA.
二噻吩并[2,3-b:3',2'-d]噻吩单醛与双醛的制备首先通过两种方法产生芳基负离子:1溴代并三噻吩在四氢呋喃中与正丁基锂发生的溴锂交换;2用LDA对二噻吩并[2,3-b:3',2'-d]噻吩去质子化作用。
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Results The synthesis condition was improved. The method of methane sulfonic acid/DL-methionine was found an ideal substitute of BBr3 for less cost. While using hydrobromic acid, the O-demethylation and hydrolyzation could be combined in one stage.
结果 优化了纳洛酮的合成工艺,甲磺酸/DL-甲硫氨酸法试剂价格低廉,可降低生产成本;而氢溴酸法不但试剂价格更低,还可将去氧甲基化和水解合并为一步反应,使新工艺的总收率提高到59.90%,产品质量符合中国药典。
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A new monomer,4-hexanoxyl-4′-undecylene-[10]-acyloxyazobenzene was synthesized using the main materials:phenol,underlenic acid,1-bromo- n -hexane, p -nitrophenol,thionyl chloride,by the substitution,reduction,couping and diazotization methods.A new polymer was prepared by hydrosilation reaction of poly (methylhy-drosiloxane) with the monomer.
以苯酚、十一烯酸、正溴己烷、对硝基苯酚和二氯亚砜为主要原料,通过取代、还原、重氮化和偶合等反应,合成了一种新的液晶单体 4-己氧基-4′-十一烯-[10]-酰氧基偶氮苯,并与聚通过硅氢加成生成一种新的高分子液晶。
- 推荐网络例句
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And discuss some key point of integrated management system design, include hazard identification and risk assessment and risk control in the occupational health and safety management, the measure of satisfaction target of customer, the flawlessness of law system, the integration of the integrated management system and enterprise standardization system, unify lead institution and work orgnization, integreted internal audit and integrated management review.
同时,论述了一体化管理体系构建中的几个主要问题,包括职业健康安全管理中的危险源辨识、风险评价和风险控制、顾客满意度的科学监测、法律、法规体系的完善、一体化管理体系与企业标准化体系的有机结合、统一的领导机构和工作机构、一体化的内部审核和管理评审。
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Deepwater Taranaki is investigated for its petroleum potential, using all available seismic data tied to shallow-water wells.
运用与浅水井相关的现有全部震波探测数据考察了深海区塔拉纳基盆地的油藏前景。
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If you're huffing and puffing at any point during the run, slow down and make sure you can take deep breathes.
如果你任何时候在跑步过程中气喘如牛,降低速度并且确保你能够深呼吸。