条件反应

FischerTropsch synthesis is an important mechanism for prebiotic origin of organic compounds and hydrothermal organic geochemical reaction.

对于地球早期有机物形成和水热条件下有机物的主要合成反应--费托反应，其重要的成烃物质H2主要由水与矿物作用产生，这是目前较为认同的地球内部无机成烃的重要方式。

The reaction of 3 with aryl aldehyde oximes afforded exclusively the product 4 under the PTC conditions.

在相转移催化条件下，3与芳香醛肟反应得到单一的产物4，与芳香酮肟反应则生成4和5的混合物。

Firstly, phenyliodine diacetate was immobilized to the 2% cross-linked polystyrene or the liner polystyrene resin. The more iodine the resin had, the lower conversion to phenyliodine diacetate. We made our endeavor to extend the range of useful application of polystyrene supported phenyliodine diacetate in organic synthesis:(1) the reagent was used as an effective reagent of carbonyl regeneration from oximes and semicarbazones of ketones.(2) the reagent was also applied to the synthesis of 1, 3, 4-oxadiazoles, 1, 3-disubstituted-2-pyrazoline, 2-arylbenzoxazole from aldehyde N-acylhydrazones, aldehyde hydoazones and phenolic Schiff's bases respectively.

首先，我们以2％交联的聚苯乙烯和线性的聚苯乙烯树脂为载体，制备了聚合物负载的二醋酸碘苯，通过研究发现：(1)聚苯乙烯二醋酸碘苯是酮肟、缩氨脲有效的去保护试剂，不仅芳香酮，脂肪酮和α，β不饱和酮的肟、缩氨脲也能顺利转化为相应的酮，实现酮基的再生；(2)我们还利用此试剂，分别与醛的N-酰基苯、N-酰基苯腙及邻羟基芳亚胺反应，在温和的条件下发生成环反应，以良好的产率生成1，3，4-噁二唑、吡唑啉和二取代苯并噁唑等杂环化合物；(3)聚苯乙烯二醋酸碘苯还可有效地将邻羟基芳酮的酰腙经氧化、重排成1，2-二酰基苯。

The oxidations of-abietic acid by 〓,〓 and 〓 under various reaction conditions and its addition reaction withdichlorocarbene were investigated.

本文首先从广西产松香中分离纯化得到松香酸，然后探讨了不同条件下〓等氧化剂对其共轭双键的氧化反应以及二氧卡宾对其共轭双键的加成反应。

The effects of reaction conditions and oxidants on the yield of compound 5 and the selective oxidation were studied, respectively.

研究了反应条件和氧化剂分别对化合物5合成收率和选择性氧化反应的影响。

In part one, a new method for the synthesis of nitriles by phase transfer catalytic reaction is introduced.

选择了一些在相应的反应温度下为液体状态的脂肪族和活泼的芳香族卤代物或酯为氰化反应底物，进行了无溶剂条件下的腈化物的合成。

Reaction mechanism and network are similar to that of base-catalyzed reactions of nitriles examined in less severe conditions.

近临界水中亚氨基二乙腈的水解反应机理和普通条件下碱催化水解反应机理相似。

Put great emphasis oned to discuss the catalyst, respond the term to influence reaction, counteract the related machine to proceeds to explain.

着重讨论了催化剂、反应条件对反应的影响，并用相关机理进行解释。

On the contrary, the existence of electron-donating groups on the benzene ring would prolong reaction times and decrease the yields.

使用苯胺为反应底物考察了各因素的影响，在优化的反应条件下，苯胺的转化率可达到99.7％，N-甲基-N-苯基氨基甲酸甲酯的收率为83.2％。

AFLP (amplified fragment length ploymorphism) analysis system for wheat resistance was established with the optimization of several main factors in wheat resistance to powdery mildew lines.

利用小麦抗白粉病材料，通过对AFLP反应体系中几个主要条件的优化，建立了适合于小麦抗病性研究的AFLP反应最佳体系。

I'm strongly against the death penalty — it's an eye for an eye.

我不赞成死刑——这是以牙还牙的报复行为。

And to get you the support you need, we're enlisting all elements of our national power: our diplomacy and development, our economic might and our moral suasion, so that you and the rest of our military do not bear the burden of our security alone.

并给你们所须的支援，我们正徵召国家所有各种的力量：我们的外交及发展，我们的经济力量与道德劝说，所以你们与其他军人不须要孤独地负起国家安全的责任。