One-Step Production of 1,3-Butadiene from 2,3-Butanediol Dehydration
One-Step Production of 1,3-Butadiene from 2,3-Butanediol Dehydration
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DOI：
10.1002/chem.201602390
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发表时间：
2016-08-22
影响因子：
4.3
通讯作者：
Hutchings, Graham J.
中科院分区：
文献类型：
--
作者：
Liu, Xi;Fabos, Viktoria;Hutchings, Graham J.
报道了以氧化铝为催化剂，由2，3-丁二醇脱水直接合成1，3-丁二烯。在优化的反应动力学条件下，异丁二烯和1，3-丁二烯的选择性可达80%左右，甲乙酮和异丁醛的产率显著降低。水的存在在抑制齐聚反应中起着关键作用。-Al_2O_3的两性性质被认为是重要的，与其他酸性催化剂相比，这有助于提高催化选择性。
We report the direct production of 1,3-butadiene from the dehydration of 2,3-butandiol by using alumina as catalyst. Under optimized kinetic reaction conditions, the production of methyl ethyl ketone and isobutyraldehyde, formed via the pinacol-pinacolone rearrangement, was markedly reduced and almost 80% selectivity to 1,3-butadiene and 1,3-butadiene could be achieved. The presence of water plays a critical role in the inhibition of oligomerization. The amphoteric nature of -Al2O3 was identified as important and this contributed to the improved catalytic selectivity when compared with other acidic catalysts.