The palladium-catalyzed C–N cross coupling of sulfinamides and arylhalides is reported. In the presence of Pd2(dba)3, tBuXPhos, NaOH, and a small amount of water, the C–N cross coupling of chiral tert-butanesulfinamide and arylhalides was accomplished to give N-aryl tert-butanesulfinamide without racemization, and the coupling of racemic p-toluenesulfinamide smoothly afforded N-aryl p-toluenesulfinamides
Kinetic Resolution of Sulfinamides via Asymmetric <i>N</i>-Allylic Alkylation
作者:Gao-Liang Zheng、Chenxi Lu、Jin-Pei Cheng、Xin Li
DOI:10.1021/acs.orglett.1c03221
日期:2021.11.5
An efficient kineticresolution of sulfinamides via an asymmetric N-allylic alkylation reaction was realized using hydroquinine as a catalyst under mild conditions. The kineticresolution of a range of Morita–Baylis–Hillman adducts and N-aryl tert-butylsulfinamides was highly effective. In addition, the synthetic utility of the protocol was demonstrated by a scaled-up reaction. Density functional theory
Addition–Rearrangement of Ketenes with Lithium<i>N</i>-<i>tert</i>-Butanesulfinamides: Enantioselective Synthesis of α,α-Disubstituted α-Hydroxycarboxylic Acid Derivatives
作者:Peng-Ju Ma、Fan Tang、Yun Yao、Chong-Dao Lu
DOI:10.1021/acs.orglett.9b01555
日期:2019.6.21
Addition of the lithium salts of chiral N-substituted tert-butanesulfinamides to ketenes and subsequent silylation initiates stereoselective [2,3]-rearrangement, which affords enantioenriched α,α-disubstituted α-sulfenyloxy carboxamides through a reaction that faithfully transfers the absolute stereochemistry of the lithiated sulfinylamides to the α-carbon of the amide products. This addition–rearrangement
Asymmetric synthesis of N-aryl sulfinamides: copper(I)-catalyzed coupling of sulfinamides with aryl iodides via kinetic resolution
作者:Yangyuan Liu、Zesheng Wang、Bin Guo、Qian Cai
DOI:10.1016/j.tetlet.2016.04.049
日期:2016.6
An asymmetric synthesis of N-aryl sulfinamides was achieved through copper-catalyzed coupling reactions of aryl iodides with sulfinamides. Such a kinetic resolution process provided the desired coupling products in moderate to good yields and with moderate enantioselectivities.
An Optimized Ni‐catalyzed Chan‐Lam Type Coupling: Enantioretentive Access to Chiral N‐Aryl Sulfinamides
作者:Chen Li、Kun Zhang、Hongrui Ma、Shuang Wu、Yilei Huang、Yafei Duan、Yunhao Luo、Jun Yan、Guang Yang
DOI:10.1002/chem.202202190
日期:2022.12.15
An optimized Ni-catalyzed Chan-Lam type couplingreaction was optimized. A series of chiral N-aryl sulfinamides was prepared with high chemical yield without any racemization. A plausible and novel mechanism was proposed and this method is useful for preparing various C−X bonds efficiently.
优化了优化的 Ni 催化的 Chan-Lam 型偶联反应。制备了一系列手性 N-芳基亚磺酰胺,化学收率高,没有任何外消旋化。提出了一种似是而非的新颖机制,该方法可用于有效制备各种 C-X 键。