allylic

allylic的音标为[əˈlaɪlɪk]，其基本意思是“与…结盟的，支持…的”，常用以指“与敌对者结盟反对第三方”，其宾语通常是国家和敌人。

速记技巧：在记忆这个单词时，可以尝试使用一些记忆方法来加强记忆，比如词根词缀记忆法，或者利用形象记忆法等。其中，词根词缀记忆法是一种比较科学的方法，可以帮助我们更好地记住单词的拼写和含义。

希望以上信息可以帮到你。

Allylic这个英文词源来自于拉丁语，意为“与同盟者相关的”。它的变化形式包括形容词allylic（同盟的）和名词allyl（烯基）。

相关单词：

ally（同盟，联姻）：这个词直接来自于allylic，表示两个或更多国家或组织之间的联盟关系。

allylic acetate（丙烯酸乙酯）：一种常见的有机化合物，在涂料、油墨和塑料等工业领域有广泛应用。

allylic ether（烯丙基醚）：一种有机化合物，在有机合成中常被用作反应中间体。

以上这些单词都与同盟、联盟、联姻等社会政治关系有关，同时也涉及到化学合成和工业生产等领域。这些单词的出现和使用反映了社会和科技的发展，也体现了语言丰富性和多样性。

常用短语：

1. allylic acid

2. allylic ether

3. allylic hydrogen

4. allylic chloride

5. allylic alcohol

6. allylic aldehyde

7. allylic acid ester

双语例句：

1. The reaction proceeded smoothly with the allylic ether being formed in high yield.

反应进行得十分顺利，产出的烯丙基醚收率很高。

2. The allylic hydrogen was easily abstracted by the base to form the corresponding alkenes.

烯丙基氢很容易被碱夺取，形成相应的烯烃。

3. The allylic chloride was reacted with a nucleophilic reagent to give the desired product.

烯丙基氯与亲核试剂反应得到所需产物。

4. The allylic alcohol underwent a rearrangement to form the desired product.

烯丙基醇发生重排得到所需产物。

5. The allylic aldehyde underwent a condensation reaction with a nucleophile to form the desired product.

烯丙基醛与亲核试剂发生缩合反应得到所需产物。

6. The allylic acid ester was hydrolysed to give the free acid.

烯丙基酸酯被水解得到游离酸。

7. The allylic acid was used to promote the reaction between the aldehyde and the amine.

烯丙基酸用于促进醛和胺之间的反应。

英文小作文：

Allylic bonds are an important part of organic chemistry, and they play a crucial role in many reactions and chemical processes. Allylic bonds are formed when two carbon atoms are joined by a double bond, and they can be found in many different types of molecules, including alkenes, alkynes, and certain types of esters and ethers.

One of the most common uses of allylic bonds is in polymerization reactions, where they allow polymers to form with high molecular weights and good mechanical properties. Another important application of allylic bonds is in organic synthesis, where they can be used to construct complex molecules and synthesize drugs and other chemicals.

Allylic bonds are also important in reactions involving nucleophiles, where they can be attacked by bases or other reagents to form new chemical bonds. These types of reactions are commonly used in organic chemistry, and they allow for the preparation of many different types of compounds and materials.

Overall, allylic bonds play a crucial role in many different types of chemical reactions and processes, and they are essential for understanding and manipulating organic molecules and compounds.