Sulfonated Hyper‐cross‐linked Porous Polyacetylene Networks as Versatile Heterogeneous Acid Catalysts
作者:Lada Sekerová、Pavlína Březinová、Thuy Tran Do、Eliška Vyskočilová、Jiří Krupka、Libor Červený、Lucie Havelková、Bogdana Bashta、Jan Sedláček
DOI:10.1002/cctc.201901815
日期:2020.2.20
highly active and reusable heterogeneous catalysts of esterification of fatty acids with methanol and ethanol, Prins cyclization of aldehydes with isoprenol and intramolecular Prins cyclization of citronellal to isopulegol. The catalytic activity of the micro/mesoporous PPCs (TON values up to 522 mol ⋅ mol−1) was higher than that of commercial polymer‐based heterogeneous catalyst Amberlyst 15 possessing
两个高度磺化的微/中孔的聚合物,P(1,3-DEB)-SO 3 H和P(1,4-DEB)-SO 3 H,具有永久孔隙率,大约比表面积550米2 ⋅克-1且SO 3 H的含量为2.7 mmol⋅g -1制备为新型酸性多孔聚合物催化剂,PPC。PPC通过容易磺化母体超交联的微/介孔聚乙炔型网络而形成,该网络是通过1,3和1,4-二乙炔基苯的链增长均聚而产生的。据报道,新的PPC是高活性和可重复使用的异质催化剂,可用于脂肪酸与甲醇和乙醇的酯化反应,醛与异戊烯醇的醛类环化以及香茅醛至异胡薄荷醇的分子内Prins环化。微米/中等PPC(TON值高达522 mol⋅mol -1)的催化活性高于具有凝胶结构且无永久孔的商业聚合物基非均相催化剂Amberlyst 15和p甲苯磺酸用作均相催化剂。