该词条未找到_海词词典

您要查找的是不是：

aromatic aldehyde and ketone 芳香醛酮
Preparing alkenyl halide from alkyne. 3.Preparing alkenyl halide from aldehyde and ketone. 3，以醛酮为原料合成卤代乙烯类化合物。
In this paper, some uncoventional reaction of aldehyde and ketone with Grignard reagent and the question of stereochemistry in the reaction was stueied chiefly. 本文着重阐述了醛、酮与格氏试剂的一些重要的非常规反应，以及反应中的立体化学问题。
METHODS: Aromatic aldehyde and 3 equivalents of ammonium acetate were refluxed in methanol for 10 min to form Shiff base.Malonic acid was added and reaction mixture refluxed intensely for 16 h. 方法:以甲醇为反应溶剂,芳香醛和3当量醋酸铵反应生成希夫碱,再加入丙二酸,反应混合物剧烈回流16h得目标产物。
Mandelic acid and its analog can be synthesized from aromatic aldehydes and chloroform as raw material with the help of phase transfer catalyst. 以芳香醛和氯仿为原料,经相转移催化反应合成扁桃酸及其类似物。
The electrooxidation of ceric salts ,the synthesis of aromatic aldehydes and the problems of this method in commercial production are all discussed. 对铈盐电氧化、芳醛的合成及本法工业化中存在的问题进行了讨论。
Research on Reaction of Aromatic Aldehyde and Ketal under Microwave Irradiation 微波促进下芳香醛与环缩酮的反应的研究
Methods A serials of thiosemicarbazones were synthesized by utilizing aromatic aldehyde,aromatic ketone and thiosemicarbazide in aqueous solution under ultrasound irradiation. 目的利用超声技术和水相体系相结合的绿色合成法优化缩氨基硫脲的合成条件,扩展超声技术在有机合成中的应用范围。
Inactivation effect of alkaline phosphatase from Haliotis diversicolor in the solutions of alcohol, aldehyde and ketone 杂色鲍碱性磷酸酶在醇、醛和酮溶液中的失活作用
The Effect about the Structure of Aldehyde and Ketone in the Carbonyi Nucleophilic Addition Activity 在羰基亲核加成反应活性中醛、酮的结构所起的作用
Keywords aldehyde and ketone compound;2;4-dinitrophenylhydrazine（DNPH）;gas chromatography;ground surface water; 醛酮类化合物;2;4-二硝基苯肼;气相色谱法;地表水;
It is produced by the reduction of fuchsin by sulfurous acid, and is oxidized by aldehydes and ketones, restoring the magenta color of the fuchsin. 配法是用亚硫酸使品红溶液还原，若有醛酮类存在时便使之氧化而重新呈现品红本身的洋红色。
The reaction of sulfate with aldehydes and ketones has been known for many years. 大家知道硫酸盐能与醛类和酮类反应已有许多年了。
REDOX Relationships amongst Alcohols, Aldehydes and Ketones and Carboxylic acids. 醇，醛与酮和羧酸之间的氧化还原关系。
In aprotic solvents magnesium effects pinacol reductive coupling of aldehydes and ketones. 在非质子性溶剂，镁对频纳醇与醛和酮的还原耦合反应也有一定效果。
Progress in piancol coupling of aldehydes and ketones using low valent titanium is reviewed in recent years. 论文综述了低价钛还原偶联醛酮合成片呐醇的进展,在超声辐射下进行了片呐醇的合成,全文共分为四章。
"The keto form predominates in many aldehydes and ketones, the enol form in ph enol s. 在许多醛和酮中酮基都是最主要的组分。
This article reported the synthesis of five new silylaminoalkyl phosphonic acids through the reactions of aromatic aldehyde、amine and phosphorous acid. 采用芳醛、胺及亚磷酸反应的新方法,制备了五种含硅氨基烃基膦酸。
Progress in pinacol coupling of aldehydes and ketones using low valent titanium is reviewed in recent years. 文章综述近几年来由低价钛还原偶联醛酮合成片呐醇的进展。
The acetalization and ketalization of various aldehydes and ketones with catechol by using HY zeolite as catalyst were studied. 研究了HY分子筛催化邻苯二酚与环己酮、丁酮、丙酮、丙醛、丁醛、异丁醛、戊醛、异戊醛、正己醛、正辛醛、苯甲醛、二苯甲酮等十余种醛(酮)的缩合反应。