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

论述了烯基醚类化合物主要制备方法炔法、脱卤化氢法和缩醛热分解法。

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A novel family of ester acetal molecular glass materials has been created by the reaction between monocarboxylic acid and divinyl ethers.

通过一元羧酸和烯基醚反应,我们得到了一新颖酯缩醛结构分子玻璃。

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Bromobutyraldehyde ethylene acetal was synthesized from crotonaldehyde by addition with hydrogen bromide and then acetalation with ethylene glycol with an overall yield of 80.

巴豆醛先与溴化氢加成,再与缩醛化得到3-溴代丁醛缩,收率80.8%。

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The effects of reactant ratio, reaction time, catalyst amount,the species and amount of deaquation reagent on the yield of benzaldehyde 1,3-butanediol acetal were investigated.

对苯甲醛与1,3-丁在钒磷氧催化剂作用下缩醛化反应进行了研究,考察了醛比、反应时间、催化剂用量、带水剂类和体积等因素对苯甲醛1,3-丁缩醛收率影响。

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科学60秒-科学美国人 2020年6月合集

The acetal linker readily cleaves in the presence of acid.

剂遇酸很容易裂解。

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活大爆炸(视频版) 第3

I preserved in a one percent solution of polyvinyl acetal resin.

它保存在纯净的 聚乙烯醇缩树脂里了。

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heartburn, heartburning, heart-centre, hearted, hearten, heartening, heartfelt, heartfree, heart-free, heartful,

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3G, 401(K), a,
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