Aim Enanthal diethyl acetal is prepared with heptaldehyde and triethyl orthoformate as raw materials.

1、

Butyraldehyde 1,2 propanediol acetal was synthesized by using stannous chloride as catalyst.

以非质子酸氯化亚锡为催化剂,催化合成了丁醛-1,2-丙二醇缩醛.

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2、

Butyraldehyde 1,2 proparediol acetal was synthesized by using stannous chloride as catalyst.

以非质子酸氯化亚锡为催化剂,催化合成了丁醛-1,2-丙二醇缩醛.

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3、

These results suggested that alcohol and acetaldehyde a significant restrained action to oligodendrocyte.

酒精、乙醛对少突胶质细胞生长有明显抑制作用.

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4、

A fast chromatographic determination of formaldehyde and acetaldehyde from the feed-in of pentaerythritol production was reported.

利用色谱法快速测定甲醛、乙醛混合溶液中各组分的浓度,为工艺提供准确的数据,指导工艺生产.

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5、

Gas chromatography ( GC ) technology was used to analyze the acetaldehyde in engine exhaust gas.

介绍了利用气相色谱分析技术分析发动机尾气的方法.

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6、

Photocatalytic degradation products of acetaldehyde included acetic acid, carbon dioxide and H 2 O vapor.

气态乙醛光催化降解产物包括乙酸、 CO2和H2O等.

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7、

Gas is a very important analysis way, which is analyse ethanol and acetaldehyde in the experiment.

在发动机尾气测试过程中, 通常我们只能测量排气中的总碳氢,并不知道排气中的乙醇和乙醛的具体含量.

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8、

The necessary material of 2-( 2-methoethyl ) acetaldehyde diethyl acetal was synthesized in addition.

另外还合成了必需原料 2- ( 2- 甲氧基乙氧基 ) 乙醛二乙醇缩醛.

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9、

A colorless liquid polymer, C 6 H 12 O 3, of acetaldehyde, used as a solvent and a sedative.

仲(乙)醛,三聚乙醛一种用作溶剂和镇定剂的无色液体聚合物, c6h12o3.

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10、

The concentration of ethanol and acetaldehyde in Meiguixiang grape after 120 day storage was studied.

研究了不同极值气体条件下贮藏过程中,玫瑰香葡萄果实内乙醇和乙醛含量的变化规律.

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11、

Pressure distillation used in acetaldehyde production can save energy markedly.

将加压蒸馏技术应用于乙醛生产,节能效果显著.

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12、

Acetaldehyde almost exists ubiquitously and is harmful to people.

乙醛广泛存在于环境中,危害人体健康.

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13、

Perfume Features: The main tone of acetaldehyde rose floral notes.

香水特色: 以玫瑰为主调的乙醛花香调.

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14、

Alcohol dehydrogenase An enzyme that converts ethanol into acetaldehyde ( ethanal ).

醇脱氢酶:把乙醇转化为乙醛的酶.

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15、

During alcoholic fermentation acetaldehyde acts as a hydrogen acceptor instead of oxygen.

在这个过程中乙醛取代了氧作为氢的受体.

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16、

The corresponding reaction of acetaldehyde is subject to general base catalysis.

乙醛相应的反应服从广义的碱催化.

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17、

This paper discussed three methods of producting vinyl etherspreparation from acetylene, dehydrohalogenation and acetals.

论述了乙烯基醚类化合物的三种主要制备方法乙炔法、脱卤化氢法和缩醛热分解法.

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18、

This paper reviewed the research development and synthesis of acetals and ketal flavors.

综述了缩醛(酮)反应的研究进展,重点介绍了缩醛(酮)类香料的合成方法.

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19、

Sorbitol acetals is the most one kind of the nucleating agents for polypropylene crystallization.

山梨醇缩醛是最重要的聚丙烯成核剂之一.

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20、

Using the same catalyst in THF acetals could be converted to the corresponding carbonyl compounds efficiently.

而在四氢呋喃和水的混合溶剂中,使用同样的催化剂,则可以高效率地实现上述反应的逆转化过程.

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