Cellulose sulfuric acid as a bio-supported and efficient solid acid catalyst for synthesis of pyrazoles in aqueous medium

Nasseri Mohammad Ali; Salimi Mehri; Esmaeili Abbas Ali

首页> 外文期刊>RSC Advances >Cellulose sulfuric acid as a bio-supported and efficient solid acid catalyst for synthesis of pyrazoles in aqueous medium

【24h】

Cellulose sulfuric acid as a bio-supported and efficient solid acid catalyst for synthesis of pyrazoles in aqueous medium

机译：纤维素硫酸作为在水性介质中合成吡唑的生物负载型高效固体酸催化剂

获取原文

获取原文并翻译 | 示例

掌桥外文数据库（机构版） >>

开具论文收录证明 >>

文献代查 >>

页面导航

摘要
著录项
相似文献
相关主题

摘要

convenient and practical method was described for the regioselective synthesis of pyrazoles from hydrazines/hydrazides and 1,3-dicarbonyl compounds via the Knorr synthesis in water with cellulose sulfuric acid (CSA) as a biopolymer-based solid acid catalyst. Various hydrazines and hydrazides were reacted with 1,3 diketones and the desired pyrazoles were obtained in high yields. The reaction of less reactive hydrazines with 1,3-dicarbonyl compounds stopped at the corresponding hydrazone derivatives. Hydrazides were employed with beta-ketoester, and imine adducts were the only isolated product. Simple isolation of products, mild reaction conditions, reusability of solid acid catalysts and short reaction times are advantages of this green procedure.

机译：描述了一种方便实用的方法，用于在水中以纤维素硫酸盐（CSA）作为生物聚合物基固体酸催化剂，通过克诺尔合成法从肼/酰肼和1,3-二羰基化合物区域选择性合成吡唑。使各种肼和酰肼与1,3二酮反应，并以高收率获得所需的吡唑。反应性较低的肼与1，3-二羰基化合物的反应在相应的derivatives衍生物处停止。酰肼与β-酮酸酯一起使用，亚胺加合物是唯一的分离产物。简单的产品分离，温和的反应条件，固体酸催化剂的可重复使用性和较短的反应时间是这种绿色程序的优势。

著录项

来源
《RSC Advances》 |2014年第105期|共7页
作者
Nasseri Mohammad Ali; Salimi Mehri; Esmaeili Abbas Ali;
展开▼
作者单位

展开▼
收录信息
原文格式 PDF
正文语种 eng
中图分类化学;
关键词

相似文献

外文文献
中文文献
专利

1. Cellulose sulfuric acid as a bio-supported and efficient solid acid catalyst for synthesis of pyrazoles in aqueous medium [J] . Nasseri Mohammad Ali, Salimi Mehri, Esmaeili Abbas Ali RSC Advances . 2014,第105期

机译：纤维素硫酸作为在水性介质中合成吡唑的生物负载型高效固体酸催化剂
2. Cellulose sulfuric acid as a bio-supported and recyclable solid acid catalyst for the one-pot synthesis of 2,4,5-triarylimidazoles under microwave irradiation [J] . Kiran F. Shelkea Suryakant B. Sapkala Gopal K. Kakadea Bapurao B. Shingatea Murlidhar S. Shingarea* Green Chemistry Letters and Reviews . 2010,第1期

机译：纤维素硫酸作为生物负载型可循环利用的固体酸催化剂，用于微波辐射下一锅合成2,4,5-三芳基咪唑
3. Cellulose sulfuric acid as a bio-supported and recyclable solid acid catalyst for the one-pot synthesis of 2,4,5-triarylimidazoles under microwave irradiation [J] . Shelke K.F., Sapkal S.B., Kakade G.K., Green Chemistry Letters and Reviews . 2010,第1a4期

机译：纤维素硫酸作为生物负载型可循环利用的固体酸催化剂，用于微波辐射下一锅合成2,4,5-三芳基咪唑
4. Coaled carbon-based solid acid: A new and efficient catalyst for click synthesis of 3,4-dihydropyrimidin-2(1H)-ones under solvent-free conditions [C] . Liu Wanyi, Ning Liu, Ruiyuan Zheng, International Conference on Chemical, Material and Metallurgical Engineering . 2013

机译：含有碳化碳固体酸：在无溶剂条件下单击合成3,4-二氢嘧啶-2（1H）酮的新增有效的催化剂
5. Ruthenium based ionic hydrogenation catalysts used in the hydrogenation of various carbonyl containing substrates in acidic aqueous sulfolane medium [D] . Dykeman, Ryan 2007

机译：用于酸性环丁砜水溶液中各种含羰基底物加氢的钌基离子加氢催化剂
6. Sulfonic acid-functionalized polyallylamine (sevelamer) as an efficient reusable strong solid acid catalyst for the synthesis of xanthenes derivatives [O] . Xian-Liang Zhao, Makombe Shelton, Ke-Fang Yang 2019

机译：磺酸官能化的聚烯丙胺（司维拉姆）是一种有效的可重用的强固酸催化剂用于合成黄嘌呤衍生物
7. Cellulose sulfuric acid (CSA) and starch sulfuric acid (SSA) as solid and heterogeneous catalysts in green organic synthesis: recent advances [O] . Rajesh H. Vekariya, Hitesh D. Patel 2014

机译：纤维素硫酸（Csa）和淀粉硫酸（ssa）作为固体和非均相催化剂在绿色有机合成中的应用：最新进展

Cellulose sulfuric acid as a bio-supported and efficient solid acid catalyst for synthesis of pyrazoles in aqueous medium

摘要

著录项

相似文献

相关主题

期刊订阅