环烷

The major products were cyclohexanecarboxylic acid and cyclohexanol. The possible reaction pathway was similar to that of benzene.

这一体系也可用于环己烷的羰基化反应，产物为环己甲酸和环己醇，反应历程与苯羰基化基本相同。

The catalytic oxidation of cyclohexane to cyclohexanone and cyclohexanol in air as probe reaction was performed without any organic solvent or cocatalyst, and the influences of the amount of metal porphyrin, reaction pressure, reaction temperature and reaction time on the catalytic activity were investigated.

以空气氧化环己烷制备环己酮和环己醇为探针反应，在不加入任何有机溶剂或助催化剂的条件下考察了金属卟啉用量、反应压力、温度、时间等对其催化活性的影响。

It was found that manganese porphyrin had the highest activity, and a maximum 15.4% of cyclohexane conversion and 93.9% selectivity of cyclohexanone and cyclohexanol could be obtained under the suitable conditions.

结果发现，锰卟啉催化活性最好，在适宜反应条件下，环己烷转化率高达15.4%，环己酮和环己醇的总选择性约为93.9%。

In China an eight-step approach to the cis-bicyclic amine was adopted, including five-step route to cyclopentane-...

国内工业生产方法是以环己酮为原料经五步反应合成中间体1，2-环戊烷二甲酸，再经过三步反应完成顺式构型的建立和氮杂五元环的合成。

The effects of reaction parameters such as temperature, pressure, and hydrogen to hydrocarbon ratio (H2/HC) on the hydroconversion of methylcyclopentane over Pt/HZSM-5 have been investigated in a fixedbed downflow reactor.

在连续流固定床反应装置上，考察了反应温度、压力及氢烃摩尔比等条件对甲基环戊烷临氢转化反应活性及扩环反应选择性的影响；结合反应评价结果和热力学分析，探讨了Pt/HZSM-5催化作用下MCP的扩环反应规律。

0 G of cyclopentyl bromide and 19.4 g of magnesium are reacted in ether or THF to give a cyclopentyl Grignard reagent.

一百十九点零克的环戊基溴或溴环戊烷和十九点四克的镁在乙醚或四氢呋喃中产生反应，形成一个环戊格氏试剂。

New progress on the catalytic epoxidation of cyclohexene was reviewed.

综述了环己烯催化氧化法合成环氧环己烷的最新研究进展。

Under the optimized conditions the conversion of cyclohexene and the selectivity of epoxycyclohexane could reach up to 91.4% and 86.3%, respectively.

在此条件下环己烯的转化率可达91.4%，环氧环己烷的选择性达86.3%。

The products have an isoxazole mother core with 3-morpholinopyridyl substitution and possess an approxi-mately planar structure. In addition a number of ester groups, amino groups, triazole groups and oxazolidi-none groups were introduced to 5-position of the isoxazole mother core.

这些化合物均以异噁唑为母核，具有近似的平面结构，在异噁唑环的3-位引入吗啉吡啶基，而在5-位引入酯基、取代氨基、三唑环和噁唑烷酮环。

The optimum conditions are: molar ratio of glycol to cyclohexanone is 1.6:1, the quantity of catalyst is equal to 0.25% of feed stocks, and the reaction time is 40 mm. H3PW12O40/MCM-48 is an excellent catalyst for synthesizing cyclohexanone ethylene ketal and its yield can reach over 80.63%.

实验表明：H3PW12O40/MCM-48是合成环己酮乙二醇缩酮的良好催化剂，在n：n＝1：1.6，催化剂用量为反应物料总质量的0.25%，环己烷为带水剂，反应时间40min的优化条件下，环己酮乙二醇缩酮的收率可达80.63%。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失