Cobalt-Catalyzed Asymmetric Sequential Hydroboration/Hydrogenation of Internal Alkynes
作者:Jun Guo、Biao Cheng、Xuzhong Shen、Zhan Lu
DOI:10.1021/jacs.7b09832
日期:2017.11.1
and enantioselective cobalt-catalyzed hydroboration/hydrogenation of internal alkynes with HBpin and a hydrogen balloon in one pot was developed. A new type of chiral imidazoline iminopyridine (IIP) ligand was introduced for the first time in this novel and efficient strategy. This protocol used relatively simple and available starting materials with good functional group tolerance to construct more valuable
Facile synthesis of substituted alkynes by nano-palladium catalyzed oxidative cross-coupling reaction of arylboronic acids with terminal alkynes
作者:Xiaopeng Nie、Suli Liu、Yan Zong、Peipei Sun、Jianchun Bao
DOI:10.1016/j.jorganchem.2010.12.038
日期:2011.4
The oxidative cross-coupling of terminal alkynes with arylboronicacidscatalyzed by the porous palladium nanospheres was developed. In the presence of silver oxide, triphenylphosphine and cesium carbonate, the reaction provided the corresponding arylalkynes with good to excellent yields. There were also other obvious advantages such as broad applicability, high selectivity, simple experimental operation