碳烯

HPLC was coupled with both mass spectroscopy and ultraviolet absorption spectroscopy for simultaneous separation and characterization of the products from glow plasma reaction of chloroform.(3) Phosphorus pentachloride has been used to perchlorinate acenaphthene under moderate pressure and temperature in sealed reaction vessels.

在此基础上，以反相C〓柱为固定相，甲醇/乙醇/环己烷为流动相，采用梯度洗脱的方法，对氯仿辉光放电合成产物进行高效液相色谱-紫外光谱-质谱联用分离分析，成功的分离得到包括富勒烯C〓和全氯代碳簇在内的数十种产物，并得到了相应的质谱和光谱数据。

The selective oxidation of propane to acrolein is an important reaction for the utilization of light alkanes.

丙烷选择氧化制丙烯醛是低碳烷烃优化利用的一个重要反应。

In addition, the effect of different olefins on alkylation reaction was also investigated.

另外，还考察了烯烃碳链长度对苯烷基化反应的影响。

These ligands were found to be very effective in construction of quaternary carbon centers by using asymmetric allylic alkylation.

这类配体在前手性亲核试剂的不对称烯丙基化构筑手性季碳中心的反应中，显示了较好的反应活性及对映选择性。

The ligands were found to be effective in palladium-catalyzed asymmetric allylic alkylation to construct chiral quaternary carbon center.

这类配体在前手性亲核试剂的不对称烯丙基化构筑手性季碳中心的反应中，显示了较好的反应活性及对映选择性。

This paper studied some of the highlights in the progress of the research of carbapenem antibiotics, designed and mainly synthesized branched chain intermediate of biapenem.

本课题概述了碳青霉烯类抗生素的研究进展，并设计合成了比阿培南的侧链中间体。

The production of value-added products based on butene oligomerization is one of the effective ways to improve the comprehensive utilization of four carbon fraction.

以丁烯齐聚为基础生产高附加值产品是提高碳四馏分化工综合利用率，为企业挖潜增效的有效途径之一。

The quality of butadiene product could meet the process demand of next working procedure and raffinate C4 could meet the technical demand of 1 - butylene and MTBE plant through technical remoulding and optimization.

在实际生产运行过程中，通过技术改造与优化，产品丁二烯能够满足下游工序生产要求，副产抽余碳四的质量能够满足1-丁烯和MTBE装置的技术要求。

An ester or a salt of perchloric acid .relating to or producing butyric acid .

顺丁烯二酸氧化形成的酸（如在脂肪和碳水化合物的新陈代谢中）。

The triple bond does not usually react so vigorously at a carbon-carbon double bond .

三键在反应时一般不象烯烃中的碳-碳双键那样剧烈。

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。