Boric Acid Catalyzed Direct Amidation between Amino-Azaarenes and Carboxylic Acids

被引:13
|
作者
Yun, Fan [1 ]
Cheng, Chunhui [1 ]
Zhang, Jing [1 ]
Li, Jingxuan [1 ]
Liu, Xia [1 ]
Xie, Rui [1 ]
Tang, Pingwah [1 ]
Yuan, Qipeng [1 ]
机构
[1] Beijing Univ Chem Technol, Organ & Med Chem Div, Coll Life Sci & Technol, State Key Lab Chem Resource Engn, Beijing 100029, Peoples R China
来源
SYNTHESIS-STUTTGART | 2017年 / 49卷 / 07期
基金
美国国家科学基金会;
关键词
amidation; boric acid; azaarenes; aminopyridine; N; N'; N'-tetramethylpropane-1; 3-diamine; AMIDE BOND FORMATION; ORGANOBORON COMPOUNDS; COUPLING REAGENTS; ORGANIC-SYNTHESIS; DERIVATIVES; INHIBITORS;
D O I
10.1055/s-0036-1588126
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
A novel and facile boric acid catalyzed direct amidation between amino-azaarene compounds and carboxylic acids has been developed. The amidation proceeded cleanly and provided good to excellent yields of the desired amides. Boric acid is a green and inexpensive catalyst. We have also found that N,N,N',N'-tetramethylpropane-1,3-diamine acted as an additive accelerating this boric acid catalyzed amidation. A mixed acid anhydride is postulated to be the active intermediate responsible for this successful amidation. This direct amidation is an atom- and step-economical reaction.
引用
收藏
页码:1583 / 1596
页数:14
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