The gaseous oxidation of diethyl ether
The gaseous oxidation of diethyl ether
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DOI：
10.1098/rspa.1959.0151
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发表时间：
1959-09
期刊：
影响因子：
--
通讯作者：
D. Waddington
中科院分区：
文献类型：
--
作者：
D. Waddington
对乙醚在低温区的气态氧化进行了详细的研究。该反应具有烃氧化的许多特征，但有一个本质区别：过量的氧气往往会阻碍乙醚燃烧的速率。诱导期的主要产物是乙醛、过乙酸和乙醇。反应后期，乙醛和过乙酸被消耗；乙醇和乙酸是主要的最终产品。假设引发过程中形成的“醚自由基”CH3CHOCH2CH3 分解产生乙醛和乙基自由基。随后，有两个同时发生的反应。首先，乙基自由基在整个反应过程中被氧化，乙醇是该过程的主要产物。其次，乙醛被氧化成过乙酸，过乙酸在反应后期分解形成大量乙酸。据认为，过乙酸是主要负责链支化的化合物。
A detailed study has been made of the gaseous oxidation of diethyl ether in the low-temperature region. The reaction has many characteristics of hydrocarbon oxidation, although there is one essential difference: excess oxygen tends to retard the rate of ether combustion. The principal products during the induction period are acetaldehyde, peracetic acid and ethanol. In the later stages of reaction, acetaldehyde and peracetic acid are consumed; ethanol and acetic acid being the principal end-products. It is assumed that an ‘ether radical’, CH3CHOCH2CH3, formed by the initiation process, decomposes to yield acetaldehyde and an ethyl radical. Subsequently, there are two concurrent reactions. First, the ethy radicals are oxidized throughout the course of the reaction, ethanol being the principal product of this process. Secondly, acetaldehyde is oxidized to peracetic acid, the peracetic acid decomposing in the later stages of reaction to form copious amounts of acetic acid. It is thought that the peracetic acid is the compound that is primarily responsible for chain-branching.