丁香醛连氮,syringaldazine,音标,读音,翻译,英文例句,英语词典

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1) syringaldazine 点击朗读

丁香醛连氮

Studies on mechanism of reaction of measuring residual chlorine in drinking water with syringaldazine;

丁香醛连氮测定饮水中余氯的机理探讨

2) syringaldehyde 点击朗读

丁香醛

The yield of syringaldehyde and vanillin is more than 90%, providing a mild and efficient method for methoxylation of non activated aromatic bromides.

以 4-羟基 - 3,5-二溴苯甲醛 (简称二溴醛 )和 4-羟基 - 3-溴苯甲醛 (简称单溴醛 )为原料 ,甲醇为溶剂 ,Cu2 Cl2 - DMF或 Cu2 Cl2 - CO2 为催化剂 ,进行温和、高效的非活性溴代芳香化合物甲氧基化反应 ,制备出了精细化学品丁香醛和香兰素 ,其收率可达 90 %以上。

By the improved study of methoxylation reaction in the process of synthesizing syringaldehydefrom 3,5 - dibromo - 4 - hydroxybenzaldehyde, the reaction conditions were improved which includeda mild and efficient cupric subcarbonate - DMF catalytic system was found and the DMF solvent wasreplaced by methanol.

67mol／L的甲醇销溶液中搅拌反应2h，丁香醛收率以溴代物计达93。

While the syringaldehyde sodium phenlate can be directly methylated without acidification.

水解采用了相转移催化剂，甲氧基化以碱式碳酸铜－二甲基甲酰胺协同催化，丁香醛酚钠盐不需酸化直接进行甲基化反应。

3) syringaldehyde 点击朗读

紫丁香醛

A study on preparation of syringaldehyde and vanillin from bagasse alkali-lignin-Ⅰ.Preparation of lowmolecular oxidation products from bagasse alkli-Lignin;

蔗渣碱木质素制紫丁香醛和香兰素的研究──Ⅰ.蔗渣碱木质素低分子氧化产物的制备

A study on preperation of syringaldehyde and vanillin from bagasse alkali-lignin Ⅱ.Seperation and purification of syringaldehyde and vanillin;

蔗渣碱木质素制紫丁香醛和香兰素的研究──Ⅱ.紫丁香醛和香兰素的分离提纯

4) aldazine ['ældə,zi:n] 点击朗读

醛连氮

例句>>

5) acetaldazine 点击朗读

乙醛连氮

6) methyl ethyl ketazine 点击朗读

丁酮连氮

The hydrolyze of methyl ethyl ketazine(MEK) was studied. 点击朗读

对丁酮连氮水解制肼反应的工艺条件进行了研究,考察了反应条件及不同催化剂对反应影响。

The reaction of methyl ethyl ketazine and water to hydrazine hydrate was studied in the catalyst conditions.

以丁酮连氮和去离子水为原料,研究了在催化剂条件下丁酮连氮水解制水合肼的不同工艺条件;考察了催化剂种类、丁酮连氮用量、反应温度、转速各因素对反应收率的影响,结果显示,较佳的工艺条件是选用DK110型弱酸阳离子交换树脂为催化剂,n(丁酮连氮)︰n(水)=1︰9比例进料,反应温度190℃,转速为700 r/min。

Synthetic conditions of methyl ethyl ketazine from butanone,NH3 and hydrogen peroxide was studied in the presence of catalyst.

以丁酮、氨气和过氧化氢为原料,研究了在催化剂条件下水合肼中间体丁酮连氮合成的不同工艺条件;考察了催化剂种类及其用量、反应时间、反应温度、双氧水用量各因素对反应收率的影响,结果显示,当催化剂选用甲酰胺,催化剂用量0。

补充资料：丁香醛

分子式：C9H10O4
分子量：182.1756
CAS号：134-96-3

性质：暂无

制备方法：暂无

用途：暂无

说明：补充资料仅用于学习参考，请勿用于其它任何用途。

参考词条

N,N'-双水杨醛缩连氮 5-硝基呋喃醛连氮丁醛丁香

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	您的位置：首页 -> 词典 -> 丁香醛连氮 1) syringaldazine 丁香醛连氮 1. Studies on mechanism of reaction of measuring residual chlorine in drinking water with syringaldazine; 丁香醛连氮测定饮水中余氯的机理探讨 2) syringaldehyde 丁香醛 1. The yield of syringaldehyde and vanillin is more than 90%, providing a mild and efficient method for methoxylation of non activated aromatic bromides. 以 4-羟基 - 3,5-二溴苯甲醛 (简称二溴醛 )和 4-羟基 - 3-溴苯甲醛 (简称单溴醛 )为原料 ,甲醇为溶剂 ,Cu2 Cl2 - DMF或 Cu2 Cl2 - CO2 为催化剂 ,进行温和、高效的非活性溴代芳香化合物甲氧基化反应 ,制备出了精细化学品丁香醛和香兰素 ,其收率可达 90 %以上。 2. By the improved study of methoxylation reaction in the process of synthesizing syringaldehydefrom 3,5 - dibromo - 4 - hydroxybenzaldehyde, the reaction conditions were improved which includeda mild and efficient cupric subcarbonate - DMF catalytic system was found and the DMF solvent wasreplaced by methanol. 67mol／L的甲醇销溶液中搅拌反应2h，丁香醛收率以溴代物计达93。 3. While the syringaldehyde sodium phenlate can be directly methylated without acidification. 水解采用了相转移催化剂，甲氧基化以碱式碳酸铜－二甲基甲酰胺协同催化，丁香醛酚钠盐不需酸化直接进行甲基化反应。 3) syringaldehyde 紫丁香醛 1. A study on preparation of syringaldehyde and vanillin from bagasse alkali-lignin-Ⅰ.Preparation of lowmolecular oxidation products from bagasse alkli-Lignin; 蔗渣碱木质素制紫丁香醛和香兰素的研究──Ⅰ.蔗渣碱木质素低分子氧化产物的制备 2. A study on preperation of syringaldehyde and vanillin from bagasse alkali-lignin Ⅱ.Seperation and purification of syringaldehyde and vanillin; 蔗渣碱木质素制紫丁香醛和香兰素的研究──Ⅱ.紫丁香醛和香兰素的分离提纯 4) aldazine ['ældə,zi:n] 醛连氮例句>> 5) acetaldazine 乙醛连氮 6) methyl ethyl ketazine 丁酮连氮 1. The hydrolyze of methyl ethyl ketazine(MEK) was studied. 对丁酮连氮水解制肼反应的工艺条件进行了研究,考察了反应条件及不同催化剂对反应影响。 2. The reaction of methyl ethyl ketazine and water to hydrazine hydrate was studied in the catalyst conditions. 以丁酮连氮和去离子水为原料,研究了在催化剂条件下丁酮连氮水解制水合肼的不同工艺条件;考察了催化剂种类、丁酮连氮用量、反应温度、转速各因素对反应收率的影响,结果显示,较佳的工艺条件是选用DK110型弱酸阳离子交换树脂为催化剂,n(丁酮连氮)︰n(水)=1︰9比例进料,反应温度190℃,转速为700 r/min。 3. Synthetic conditions of methyl ethyl ketazine from butanone,NH3 and hydrogen peroxide was studied in the presence of catalyst. 以丁酮、氨气和过氧化氢为原料,研究了在催化剂条件下水合肼中间体丁酮连氮合成的不同工艺条件;考察了催化剂种类及其用量、反应时间、反应温度、双氧水用量各因素对反应收率的影响,结果显示,当催化剂选用甲酰胺,催化剂用量0。补充资料：丁香醛分子式：C9H10O4 分子量：182.1756 CAS号：134-96-3 性质：暂无制备方法：暂无用途：暂无说明：补充资料仅用于学习参考，请勿用于其它任何用途。参考词条

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