Carbon-based nanocatalyst: An efficient and recyclable heterogeneous catalyst for one-pot synthesis of gem-bisamides, hexahydroacridine-1,8-diones and 1,8-dioxo-octahydroxanthenes
作者:Jaspreet Kour、Monika Gupta、Bushra Chowhan、Vivek K. Gupta
DOI:10.1007/s13738-019-01723-1
日期:2019.12
acid as a solid acid catalyst. This nanocatalyst is recyclable and also exhibited very high activity. Novel carbon-based nanocatalyst, i.e. cellulose[2-(sulfooxy)ethyl]mercaptosulfonic acid[SEMSA] was successfully synthesized by reacting mercaptoethanol and chlorosulfonic acid, and the catalytic activity of the prepared catalysts was evaluated for the one-pot synthesis of gem-bisamides from various aldehydes
摘要在此摘要中,我们讨论了磺化碳基材料在各种酸催化的有机转化中的进展,然后将其进一步应用于医学领域,实验室和工业中。采用一种简单新颖的方法制备了碳基纳米催化剂,即纤维素[2-(磺氧基)乙基]巯基磺酸作为固体酸催化剂。该纳米催化剂是可回收的,并且还表现出非常高的活性。巯基乙醇与氯磺酸反应成功合成了新型的碳纳米催化剂纤维素[2-(磺氧基)乙基]巯基磺酸[SEMSA],并评价了所制备催化剂的催化活性,用于一锅法合成宝石。-通过醛和二甲酮与芳族醛,二甲酮和乙酸铵或芳香胺和1,8-二氧-八氢氧杂蒽的三组分缩合,可得自各种醛和苯甲酰胺的双酰胺,六氢ac啶-1,8-二酮。与传统的合成方法相比,这种新的非均相纳米催化剂系统的应用具有高收率,反应时间短,生态友好,操作简便的优点,并且已通过1 H等研究确定了合成产物核磁共振和131 H NMR。在各种催化剂中,发现该纳米催化剂,即纤维素[2-(磺氧基)乙基]