Synthesis of 3-methyl-3-buten-1-ol by supercritical CO2 in coordination with HZSM-5catalyzed formaldehyde-isobutene Prins reaction

被引：0

作者：

Yuan, Hang ^{[1
]}

Cao, Gui-Ping ^{[1
]}

Lv, Hui ^{[1
]}

机构：

[1] East China Univ Sci & Technol, Sch Chem Engn, Dept Chem Engn & Technol, Shanghai, Peoples R China

来源：

TURKISH JOURNAL OF CHEMISTRY | 2024年 / 48卷 / 04期

关键词：

3-Methyl-3-buten-1-ol; base-loaded catalyst; supercritical CO2; Prins reaction; MODIFIED HZSM-5 CATALYST; P-MODIFIED HZSM-5; PHOSPHORIC-ACID; CONDENSATION; ISOPRENE; SITES; ISOBUTYLENE; COMPLEXES; METHANOL; CRACKING;

D O I：

10.55730/1300-0527.3682

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The reaction solvent and catalyst play essential roles in the Prins reaction for the synthesis of 3-methyl-3-buten-1-ol (MBO) from formaldehyde and isobutene. The reactivity of the solid base-catalyzed Prins condensation reaction by formaldehyde and isobutene in supercritical CO2 was investigated using CsH2PO4-modified HZSM-5. We found that the alkaline sites of the alkali-loaded catalyst could extract the alpha-H on isobutene to generate olefin carbon-negative ions, while the supercritical CO2 with weak Lewis acidity could activate formaldehyde to carbon-positive ions, which can combine more easily with carbon-negative isobutene to react, thus improving the reactivity of the reaction system.

引用

页码：597 / 619

页数：24