Rapid Bis-Coupling Reactivity with Triarylbismuth Reagents: Synthesis of Structurally Diverse Scaffolds and Step-economic Convergent Synthesis of Quebecol
作者:Maddali L. N. Rao、Venneti N. Murty、Sachchida Nand
DOI:10.1002/ejoc.201901830
日期:2020.3.22
The cross‐coupling study of gem‐dibromoesters with triarylbismuths furnished a variety of multi‐functional trisubstituted acrylates embedded with aryl, alkene and alkyne scaffolds in high yields under palladium catalysis. Further, the established method was applied in the step‐economic and convergentsynthesis of quebecol natural product in good yield.
Sulfonylation of Bismuth Reagents with Sulfinates or SO<sub>2</sub> through Bi<sup>III</sup>/Bi<sup>V</sup> Intermediates
作者:Fengqian Zhao、Xiao-Feng Wu
DOI:10.1021/acs.organomet.1c00339
日期:2021.8.9
Under oxidative conditions, triarylbismuthines and sulfinates were transformed into diarylsulfones. A transition-metal-like two-electron redox process at the Bi center was achieved in this reaction. Sulfurdioxide generated in situ can also replace sulfinates to deliver the corresponding symmetric diarylsulfones. A rational mechanism for this reaction was also proposed that involves a Bi(III)–Bi(V)
探索主族元素催化活性的研究很有吸引力。我们在此报告我们对铋试剂与亚磺酸盐或 SO 2替代物磺酰化的研究。在氧化条件下,三芳基铋和亚磺酸盐转化为二芳基砜。该反应在Bi中心实现了类似过渡金属的双电子氧化还原过程。原位生成的二氧化硫也可以替代亚磺酸盐以提供相应的对称二芳基砜。还提出了该反应的合理机制,涉及 Bi(III)-Bi(V) 流形。
Experimental and Theoretical Study on Palladium-Catalyzed C–P Bond Formation via Direct Coupling of Triarylbismuths with P(O)–H Compounds
作者:Tao Wang、Shuai Sang、Liu Leo Liu、Hongwei Qiao、Yuxing Gao、Yufen Zhao
DOI:10.1021/jo402392t
日期:2014.1.17
A novel and highly efficient Pd-catalyzed cross-coupling of triarylbismuths with a variety of P(O)–H compounds has been developed that proceeds smoothly without exclusion of moisture or air and provides a general and powerful tool for the preparation of various valuable arylphosphonates, arylphosphinates, and arylphosphine oxides, with high atom-economy, operational simplicity of the procedure, and
High efficient copper-promoted N-arylation of secondary and primary amines with triarylbismuth reagents under mild conditions
作者:Xuehao Zhou、Huifang Ma、Jianwei Xie
DOI:10.1016/j.molstruc.2023.136437
日期:2023.12
Triarylbismuths were found to be highly efficient arylating reagents for copper-promoted N-arylation of secondary and some heteroaryl and aliphatic primary amines with over 49 examples. A variety of sterically diverse tertiary and secondary amines could be obtained in good to excellent yields with good functional group compatibility. The operational simplicity, mild reaction conditions as well as the
A simple approach for copper-promoted S-arylation reactions utilizing triarylbismuths or triarylantimonys as arylating reagents has been described. These reactions can be performed under mild conditions and exhibit remarkable functional group tolerance and chemoselectivity. The corresponding 2-arylthiopyridine 1-oxide derivatives and arylthioanilines/phenols have been successfully synthesized, achieving