1426585-77-4Relevant articles and documents
Improving carbene-copper-catalyzed asymmetric synthesis of α-aminoboronic esters using benzimidazole-based precursors
Wen, Kun,Wang, Han,Chen, Jinbo,Zhang, He,Cui, Xiaodan,Wei, Chao,Fan, Erkang,Sun, Zhihua
, p. 3405 - 3409 (2013/06/26)
By using a benzimidazole core and N-substitutions to tune the electronic properties of the corresponding N-heterocyclic carbenes, a one-pot protocol for efficient synthesis of α-aminoboronic esters without the need of a glovebox was developed in this work. The starting materials for the transformation can also be extended from aldehydes to ketones. An alternative protocol with short reaction time using preformed carbene-copper chloride is also described.