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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-丁二醇在催化剂作用下的缩醛化进行了研究,考察了比、间、催化剂用量、带水剂种类和体积等因素对苯甲醛1,3-丁二醇缩醛收率的影响。

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Keynesianism, keynote, keynote address, keynote speech, keynoter, keynotes, key-off, key-on, keypad, keypads,

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3G, 401(K), a,

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学 Crash Course

If you were paying attention, you learned that alcohols are organic compounds with hydroxyl groups, if you dehydrogenate them, the hydroxyl converts to a carbonyl and they become dehydrogenated alcohols or aldehydes.

如果你注意听了,你应该是含有羟基的有机合物, 如果你对其进行脱氢处理, 羟基会转为羰基, 从而变成脱氢

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学 Crash Course

So dive in, join me in this solution of ethers and esters and aldehydes and amines and alcohols, but, like, not literally because that would be super gross and you would probably die.

所以跳进来,和我一起沉浸在、胺和的溶液中, 但是,像这样的,不是真的,因为那样会超级恶心, 你可能会死。

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学 Crash Course

Aldehydes are just dehydrogenated alcohols, ketones are just aldehydes bonded to R-groups on both sides (instead of a hydrogen on one side).

就是脱氢的,酮就是两侧都与R基团相连的(而不是一侧连着氢)。

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key-sending, keysent, keyset, keysets, keyshelf, keyslot, keystoke, keystone, Keystone State, Keystoner,

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3G, 401(K), a,
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