期刊论文

EFFICIENT GREEN PREPARATION OF CYCLOPROPANALDEHYDE BY ISOMERIZATION REACTION

中文

精细石油化工

1003-9384

2022

39

01

23-27

10.3969/j.issn.1003-9384.2022.01.006

湖南省教育厅资助科研项目（20A019）； 湖南省水生资源食品加工工程技术研究中心开放基金项目资助（2018KJY08）； 湖南省研究生科研创新项目（CX20200889）；

本校为第一机构

以2,5-二氢呋喃为原料,N,N-二乙基羟胺为阻聚剂,在羰基氯氢三（三苯基膦）钌催化下进行加压反应制备中间体2,3-二氢呋喃;然后采用以纳米催化剂ZrO2/TiO2/γ-酸性氧化铝的固定床催化工艺,高效异构化制备环丙甲醛,两步反应总收率达75.0%以上。研究了环丙甲醛的工业化生产工艺,考察了多种稀有金属催化剂、反应温度、压力和阻聚剂的类型及用量等因素对合成2,3-二氢呋喃的影响,并对固定床催化工艺的反应温度和催化剂进行了筛选。

The intermediate 2,3-dihydrofuran was prepared in high yield with good selectivity using2,5-dihydrofuran as raw material,N,N-diethylhydroxylamine as a polymerization inhibitor,under pressure reaction catalyzed by carbonyl tris(triphenylphosphine)ruthenium.Then,2,3-dihydrofuran was efficiently isomerized to cyclopropanaldehyde in a fixed-bed process catalyzed by the nano-catalyst ZrO2/TiO2/γ-acidic alumina.The total yield of the two-step reaction is over 75.0%.The industrial production methods of cyclopropanaldehyde were studied.The effects of ...