反应是在装有分馏柱的反应器中进行的,分馏柱能让醛通过但使醇回流到反应器中。
Reaction is carried out under a fractionating column that allows aldehyde to pass but returns alcohol to the reaction vessel .
并对发光反应的机理作了简单的探讨,通过测试说明化学发光反应主要发生在醇氧化成醛这一步。
The mechanism of such chemiluminescence is discussed in brief and is shown that the chemiluminescence occurs in the step of alcohol oxidized into aldehyde.
以单质碘为催化剂,通过丁醛和乙二醇反应合成了丁醛乙二醇缩醛。
Butyraldehyde glycol acetal was synthesized from butyraldehyde and glycol by using iodine as catalyst.
在此反应条件下,丁醛乙二醇缩醛的收率可达71.1%。
Under these conditions, the yield of butyraldehyde glycol acetal is 71.1%.
在磷酸催化下,由葡萄糖和乙二醇经缩醛化反应制备了乙二醇葡糖苷,可用作化妆品保湿剂。
Ethylene glycol glycosides, useful as humectant in cosmetics, were prepared by phosphoric acid-catalyzed acetalization of glucose with ethylene glycol.
在酸性催化剂下,由葡萄糖和乙二醇经缩醛化反应制备了乙二醇葡糖苷。
Glycol glucoside was prepared from glucose and ethylene glycol in the presence of acid catalyst.
此机理不同于只有1,2加成方式的聚乙烯醇缩饱和醛化反应。
This mechanism is different from that for the acetalization reaction of polyvinyl alcohol with saturated aldehydes, which has only 1, 2 addition.
醛、酮与醇的缩合反应是羰基保护的通用方法。
Condensation of aldehydes or ketones with alcohols is one of the most common methods for protecting carbonyls.
在有机化学中,将苄卤和苄醇氧化成芳醛或芳酮是一类非常重要的反应。
In organic chemistry, the oxidation of benzyl halides and benzyl alcohols to aromatic aldehydes and aromatic ketones is an important reaction and of great significance both in theory and in practice.
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。
In aprotic solvents magnesium effects pinacol reductive coupling of aldehydes and ketones.
人们普遍认为,脯氨酸通过形成单氢键相连接的中介物来催化醛醇缩合反应。
Proline is believed to catalyse the aldol reaction through a hydrogen-bonded intermediate.
含活性基团的醛可与烯丙基碘和锡粉直接进行亲核加成反应,得到高烯丙基型的醇。水的存在不利于此反应的进行。
Aldehyde containing functional groups can react with allyl iodine and tin directly, water is of no advantage to the reaction.
可在异构脱蜡、选择性加氢及裂化、醇醛缩合等反应中用作催化剂的活性组分和载体。
It can be used as catalyst or catalyst carrier for dewaxing via isomerization, selective hydrogenation, cracking, condensation of alcohol and aldehyde, etc.
以单质碘为催化剂,通过丁醛和1,2丙二醇反应合成了丁醛1,2丙二醇缩醛。
The butyraldehyde 1, 2-propanediol acetal is synthesized from the acetalization reaction of butyraldehyde and 1, 2-propanediol, and used iodine as catalysis.
将聚苯乙烯固载的聚乙二醇用于催化柠檬醛与丙酮的缩合反应。
Polystyrene supported polyethylene glycol was used as catalyst in the condensation reaction of citral and acetone, yield of pseudoionone was 77.4%.
乙醛和丙二醇的缩醛化反应表明丙二醇的转化率主要受催化剂表面弱酸度的影响。
The conversion of propylene glycol was mainly affected by the surface acidity of the catalyst.
以浓硫酸改性煤基活性炭为催化剂,以苯甲醛和乙二醇为原料合成苯甲醛乙二醇缩醛的反应条件进行了研究。
Using concentrated H_2SO_4 modified coal based activated carbon as catalyst, benzylaldehyde glycol acetal was synthesized from benzylaldehyde and glycol.
研究了紫苏醛*醇选择氧化合成紫苏醛*的反应,考察了氧化剂负载量、氧化剂用量和反应温度对紫苏醛*产率的影响。
Synthesis of perillaldehyde via selective oxidation of perilla alcohol by supported CrO3/SiO2 oxidant is studied in this paper.
研究了紫苏醛*醇选择氧化合成紫苏醛*的反应,考察了氧化剂负载量、氧化剂用量和反应温度对紫苏醛*产率的影响。
Synthesis of perillaldehyde via selective oxidation of perilla alcohol by supported CrO3/SiO2 oxidant is studied in this paper.
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