Asymmetric Synthesis and Application of Chiral Spirosilabiindanes
作者:Xin Chang、Pei‐Long Ma、Hong‐Chao Chen、Chuan‐Ying Li、Peng Wang
DOI:10.1002/anie.202002289
日期:2020.6.2
class of chiral spirosilabiindane scaffolds by Rh-catalyzed asymmetric double hydrosilation, for the first time. Enantiopure SPSiOL (spirosilabiindane diol), a new type of chiral building block for the preparation of various chiral ligands and catalysts, was readily prepared on greater than 10 gram scale using this protocol. The potential of this new spirosilabiindane scaffold in asymmetric catalysis
Synthesis of 2,1-Benzoisoxazole-Containing 1,2,3-Triazoles through Copper-Catalyzed Three-Component Domino Reactions of <i>o</i>-Bromoacetophenones, Aldehydes, and Sodium Azide
We herein describe an efficient copper-catalyzed three-component domino protocol used to prepare 2,1-benzoisoxazole-containing 1,2,3-triazoles from commercially available o-bromoacetophenones, aldehydes, and sodium azide. This domino process involves Aldol condensation, copper-catalyzed azide-chalcone oxidative cyclization, 1,2,3-triazole-assisted azidation, and denitrogenative cyclization sequences
Diverse Synthesis of Alkenylsilanes via Pd-Catalyzed Alkenyl C–H Silylation
作者:Zi-Hang Ye、Fei-Hu Gou、Yichen Wu、Chuan-Ying Li、Peng Wang
DOI:10.1021/acs.orglett.3c00633
日期:2023.3.31
Here, we disclose a generalapproach for the diverse synthesis of alkenylsilanes in a highly efficient, stereoselective, and atom-economic manner by leveraging the palladium-catalyzed disilylation reaction of 2-bromostyrene derivatives with hexamethyldisilane, which is suitable for the preparation of a series of disubstituted, trisubstituted, and tetrasubstituted alkenylsilanes. Furthermore, the resulting