| 代红光,刘旭慧,王丽荣,师兰.化学通报,2018,81(10):929-933. |
| 生物质木质素磺酸催化合成N-取代吡咯 |
| Synthesis of N-Substituted Pyrroles using Lignosulfonic Acid as Biomass-Based Catalyst |
| 投稿时间：2018-05-18 修订日期：2018-07-22 |
| DOI： |
| 中文关键词: aal–Knorr反应 木质素磺酸 吡咯 生物质催化剂 |
| 英文关键词:Paal–Knorr reaction, Lignosulfonic acid, Pyrroles, Biomass-based catalyst |
| 基金项目:国家自然科学基金项目（21607085） |
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| 中文摘要: |
| 木质素磺酸是非均相、环境友好的生物质催化剂。本文以造纸废料木质素磺酸钠为原料，通过离子交换的方法制备了木质素磺酸。通过红外、元素分析、滴定等方法表征了木质素磺酸的结构。以木质素磺酸为催化剂，2,5-己二酮与伯胺发生Paal–Knorr反应以较优的产率合成了N-取代吡咯。伯胺的亲核能力越强，反应越容易进行，是典型的亲核反应。 |
| 英文摘要: |
| Lignosulfonic acid is a kind of heterogeneous, environmentally friendly, biomass-based solid catalyst. In this paper, it was prepared by ion-exchangemethod using sodium lignosulfonate inpapermakingwaste as raw material. Its structurewas characterized by FT-IR, elemental analysis and titration. Using lignosulfonic acidas a catalyst, N-substituted pyrroles were synthesized efficiently by Paal–Knorr reaction of hexane-2,5-dioneand primary amine in good to excellent yields. This is a typical nucleophilic reaction.The stronger the nucleophilic ability of the primary amine, the more easily the reaction proceeds. |
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