戊醛

戊醛、催化剂和苯甲酸形成的复合物进攻硝基苯乙烯后形成过渡态。

The complex formed from pentanal , catalyst and benzoic acid attacks nitroalkene and forms transition states .

结果从生物燃料烟气样品中检测出的醛酮类物质主要有甲醛、乙醛、丙酮、苯甲醛、正戊醛和苯丙醛等6种。

Results The following six aldehydes and ketones were found in the smoke sample : formaldehyde , acetaldehyde , ketone , benzaldehyde , valeraldehyde , and phenylpropyl aldehyde .

合成了氧化物（MgO、SiO2、TiO2和ZrO2）负载的铂催化剂，考察了它们对氧气常压氧化成醇生成戊醛反应的催化作用。

Oxide ( MgO , SiO2 , TiO2 and ZrO2 ) - supported platinum catalysts were prepared .

亮氨酸与还原糖组成的Maillard模型体系形成异戊醛

Formation of Isovaleraldehyde in the Maillard Model Reaction System Consisting of Leucine and Reducing Sugar

1-丁烯氢甲酰化反应制戊醛是C4资源综合利用的有效途径之一。

The reaction " pentanal synthesis via hydroformylation of 1-butene " is one of C4 resources comprehensive utilization effective ways .

研究了该复合氧化物（LDO）对环戊酮和正戊醛进行Aldol缩合反应的催化性能，并以气相色谱（GC）和气-质联用（GC-MS）对生成物进行定性和定量分析。

Then aldol condensation of cyclopentanone and n-valeraldehyde was studied by the catalyst of LDO , gas chromatography ( GC ) and gas chromatography-mass spectrometry ( GC-MS ) were used for qualitative and quantitative analysis .

3种催化剂催化液化麦秆所得LPs组成主要包括短链脂肪酸乙酯、呋喃衍生物、环戊醛酮、苯酚衍生物、苯衍生物、芳酸衍生物、长链脂肪酸乙酯和甾族化合物。

Shorter chain carboxylic acid ethyl esters , furan derivatives , cyclopentanone , phenol derivatives , benzene derivatives , aromatic acid derivatives , longer chain carboxylic ethyl esters and sterides are main compositions of LPs with the above three catalysts .

羟基新戊醛的直接电氧化用氰选择电极测定电镀废水中的含氰量

Direct Determination of Cyanide in Plating Wastewater with Cyanide Ion-Selective Electrode

2（3）-乙酰硫基-4-氧代戊醛合成的研究

The study of the synthesis of 2 ( 3 ) - thioacetyl-4-oxo-pentyl-aldehyde

应用分子氧/正戊醛/三氧化二钴体系氧化环己烯的研究

Studies on Co_2O_3-Catalyzed Epoxidation of Cyclohexene in the System of Valeraldehyde and Molecular Oxygen

异丁烯氢甲酰化合成异戊醛用担载型铑膦络合物催化剂研究

Supported Rhodium Phosphine Complex Catalysts for Isobutene Hydroformylation

正戊醛是合成香料双氢茉莉酮酸甲酯的重要原料。

N-amyl aldehyde is a main raw material in the synthesis of methyl dihydrojasmonate fragrance .

研究了乙二硫醇与异戊醛物质的量比、催化剂用量、反应时间等因素对反应收率的影响。

Effects of mole ratio of1,2-ethanedithiol to isovaleraldehyde , amount of catalyst and refluxed time were investigated .

醛类挥发物中除甲醛外还有少量的戊醛和己醛，微量的丁醛、丙酮、乙醛和丙醛。

There were still a small amount of pentanal and hexanal and a little butyraldehyde , acetone , acetaldehyde and propionaldehyde .

本文介绍了异戊醇脱氢制异戊醛的一种方法和异戊醛氧化制异戊酸的方法。

This paper briefly introduced a method that isovaleraldehyde is produced from isoamyl alcohol and that isovaleric acid is produced from isovaleraldehyde .

异戊醛是国家规定的可食用的香料醛，也是有机合成的重要中间体之一。

Isovaleraldehyde is a spice aldehyde that can be eaten according to the national regulation , and also one of the important intermediate .

介绍普瑞巴林的物理性质及其6种分别以4-甲基戊酸和异戊醛为原料的不同合成方法。

The physical property of pregabalin and six different synthetic routes for preparing pregabalin starting with 4-methyl valeric acid and isovaleraldehyde were introduced separately .

检测结果表明，随着绍兴酒酒龄的增加，异戊醛、苯甲醛含量相应增加，糠醛含量则减少；

The determination results suggested that with the increase of the age of Shaoxing yellow rice wine , the content of isovaleraldehyde and benzaldehyde increased and the content of furfural decreased .

实验结果表明，将该催化体系作用于环戊酮和正戊醛的交叉缩合反应中，主产物2-亚戊基环戊酮的收率大于90%，取得了较为满意的效果。

The results showed that the catalyst system had satisfactory results in cross-aldol condensation of cyclopentanone and n-valeraldehyde , the yield of main product 2-pentylidene cyclopentanone can be reached to more than 90 % .

由其反应产物正戊醛出发，可以进一步生成正戊醇、正戊酸、正戊胺、2-丙基庚醇等，均为目前国内外需求旺盛的化学品。

Based on the reaction product pentanal , pentanol , pentanoic acid , amylamine , 2-propyl heptanol and so on could also be generated , which mentioned above are all currently demanded chemicals for domestic and foreign .

自制了固体碱催化剂用于催化戊醛缩合反应，考察了碱金属、载体、反应温度、反应压力、空速等条件对反应的影响。

Solid basic catalysts for aldol condensation of valeraldehyde were prepared in the lab , and the effects of reaction conditions such as alkali metal , catalyst support , reaction temperature , pressure , LHSV were examined .

文中介绍了以2-丁烯为原料，用铁钴簇催化剂羰基合成法制正戊醛的新方法，与用贵金属铑、钴催化剂法相比，可降低产品成本。

This article introduces the new method of producing n - amyl aldehyde with 2-butene as raw material and Fe-Co as catalyst via oxo reaction . It can decrease the cost comparing with the method of using noble metals Co or Rh as catalyst .