Multisulfonate hyperbranched polyglycerol functionalized graphene oxide as an efficient reusable catalyst for green synthesis of benzo[a] pyrano-[2,3-c]phenazines under solvent-free conditions

نویسندگانحسین نعیمی,مریم فرحناک ضرابی
نشریهRSC ADV
شماره صفحات7400
شماره مجلد9
ضریب تاثیر (IF)3.049
نوع مقالهFull Paper
تاریخ انتشار2019-02-28
رتبه نشریهعلمی - پژوهشی
نوع نشریهالکترونیکی
کشور محل چاپایران
نمایه نشریهJCR

چکیده مقاله

A novel acid catalyst was prepared based on growing hyperbranched polyglycerol (HPG) on the surface of graphene oxide. Then, the hydroxyl groups of HPG on graphene oxide were functionalized by sulfonate groups to form an acid catalyst. The catalyst displayed a good loading level of acidic groups on the surface because of coating graphene oxide with HPG. This new catalyst is demonstrated to be highly effective in the preparation of benzo[a]pyrano[2,3-c]phenazine dyes.

tags: Graphene, catalyst, synthesis, phenazines