Acetaldehyde generated from the2-butene aldehyde carbonyl and the reaction is the condensation of methylene 由乙醛生成2-丁烯醛的反应是羰基与亚甲基发生缩合的
Treatment of highly concentrated phenol& aldehyde containing wastewater by the condensation/ rectification-CASS-suspension/ contact bio-oxidation process 缩合/精馏CASS悬浮/接触生物氧化法处理高浓度酚醛废水
The corrosion of aldehyde condensation solution has been a great difficult technical problem in polyvinyl alcohol fibre production industry, which has been hindering the normal operation of the plant. 维纶醛化液腐蚀是维纶行业的一大技术难题,一直困扰着工厂的正常生产。
Aldehyde oxidation, hydrogenation reaction on main, condensation, de Carbonyl; 发生在醛基上的反应主要有氧化、氢化、缩合、脱羰基等;
Utilizing dimethy succinate and benzoic aldehyde as starting materials, Mitiglinide was synthesized with a high optical purity (> 99%) in the overall yield 10.7% via a ten-step route including Stobbe condensation, hydrolyzation, catalytic hydrogenation and resolution. 以琥珀酸二甲酯和苯甲醛等为起始原料,经过Stobbe缩合、水解、催化氢化、拆分等十步反应,合成了具有较高光学纯度(>99%)的Mitiglinide,总收率为10.7%。
The solid base of NaOH adsorbed on MgO or CaO was used as condensation catalyst, and Pd/ C was used as hydrogenation catalyst. 2-Heptanone was synthesized from n-butyl aldehyde and propanone via cross al-dol condensation, dehydration, catalyzed hydrogenation. 用氧化镁或氧化钙负载氢氧化钠(NaOH)固体碱作缩合催化剂,钯/炭(Pd/C)作为加氢催化剂,由丁醛和丙酮经交叉酮醛缩合、脱水、催化加氢制得2-庚酮。
Characterization of cardanol-aldehyde condensation polymer containing copper-nitrogen coordinated bond 含铜氮配键腰果酚醛缩聚物的特性及表征
The reaction condition obtained could be also applied to other α,β-unsaturated ketone ( aldehyde) condensation reactions. 此条件对于其他的α,β-不饱和酮(醛)缩合反应亦适宜。
Using solid K_2CO_3 as a base catalyst and benzyl triethyl ammonium chloride ( BTEAC) as a phase transfer catalyst, jasmine aldehyde was prepared by the condensation of benzaldehyde and heptaldehyde. 在碱性催化剂固体K2CO3和相转移催化剂苄基三乙基氯化铵(BTEAC)的作用下,由苯甲醛和庚醛合成了素馨醛。
This article studies the preparation of greenness environment solvent, 2-heptanone, with DMK ( propanone) and BD ( n-butyl aldehyde), via cross aldol condensation, dehydration with acid and catalyzed hydrogenation. 本论文探讨了以DMK(丙酮)与BD(丁醛)为原料,经交叉缩合、酸性脱水和催化加氢制备绿色环保型溶剂MAK(2-庚酮)的合成路线。
Jasmine aldehyde is synthetized by the condensation of heptaldehyde with benzaldehyde in alkaline medium. Effects of reaction temperature, reaction time and the quantity of alkali needed on yield are discussed. 以庚醛和苯甲醛为原料在碱性介质中缩合合成α&戊基肉桂醛.讨论反应温度、反应时间和投碱量对产率的影响。
1, Taking hydrogen peroxide as an oxidant, 2,2-bis ( hydroxymethyl)-propionic aldehyde, which is formed by the aldol condensation from formaldehyde with propionic aldehyde, is oxidized, and then 2,2-bis ( hydroxymethyl)-propionic acid is obtained. 甲醛和丙醛通过醇醛缩合形成2,2-二羟甲基丙醛,之后用过氧化氢作为氧化剂,生成厂2,2-二羟甲基丙酸。