التفاصيل البيبلوغرافية
| العنوان: |
Catalyst‐Free Regioselective Diborylation of Aryllithium with Tetra(o‐tolyl)diborane(4). |
| المؤلفون: |
Mao, Xiaofeng, Lu, Zhenpin, Zhang, Jie, Xie, Zuowei |
| المصدر: |
Angewandte Chemie; Feb2024, Vol. 136 Issue 6, p1-5, 5p |
| مصطلحات موضوعية: |
DIBORANE, DENSITY functional theory, LITHIUM borohydride |
| مستخلص: |
A catalyst‐free 1,2‐diborylation of aryllithium with tetra(o‐tolyl)diborane(4) has been achieved, giving a series of 1,2‐diborylaryl lithium species in excellent yields under mild reaction conditions, which leads to 1,2‐di(tolyl)borylarenes in 60–91 % yields upon treatment with the hydride‐abstracting reagent. In these transformations, one sp2 C−H of arene is activated and both boryl units are utilized to build two new (sp2)C−B bonds. This represents a new strategy for selective arene diborylation. Density functional theory (DFT) calculations suggest that an aromatic nucleophilic substitution is a key step in the formation of the products. [ABSTRACT FROM AUTHOR] |
|
Copyright of Angewandte Chemie is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) |
| قاعدة البيانات: |
Complementary Index |
Full Text Finder