MCM-41-SO3H: an efficient, reusable, heterogeneous catalyst for the one-pot, three-component synthesis of pyrano[3,2-b]pyrans
作者:Yaghoub Sarrafi、Ebrahim Mehrasbi、Seyyedeh Zohreh Mashalchi
DOI:10.1007/s11164-015-2275-z
日期:2021.4
MCM-41-SO 3 H, ordered mesoporous silica material MCM-41 with covalently anchored sulfonic acid groups, was used as a solid acid catalyst for the convenient, efficient, and ‘green’ synthesis of 2-amino-6-(hydroxymethyl)-8-oxo-4-aryl-4,8-dihydropyrano[3,2- b ]pyrans via a one-pot, three-component reaction of 5-hydroxy-2-(hydroxymethyl)-4 H -pyran-4-one, aldehydes and malononitrile in aqueous media.
MCM-41-SO 3 H,具有共价锚定磺酸基团的有序介孔二氧化硅材料 MCM-41,被用作固体酸催化剂,用于方便、高效和“绿色”合成 2-氨基-6-(羟甲基) -8-oxo-4-aryl-4,8-dihydropyrano[3,2- b]pyrans 通过 5-hydroxy-2-(hydroxymethyl)-4 H -pyran-4- 的一锅三组分反应一、水性介质中的醛和丙二腈。