Dienylation of Unfunctionalized Arenes with 1,6-Diynes via Rhodium-Catalyzed Directing-Group-Free C–H Bond Activation
作者:Ken Tanaka、Hiroto Takahashi、Yusaku Honjo、Yu Shibata、Yuki Nagashima
DOI:10.1055/a-1328-6436
日期:2021.9
unfunctionalized arenes with 1,6-diynes, possessing aryl groups at the diyne termini, proceeds to give the corresponding dienylated arenes in the presence of a catalytic amount of an electron-deficient cyclopentadienyl rhodium(III) complex, [CpERhCl2]2, and a stoichiometric amount of silver carbonate. Experimental and theoretical mechanistic studies revealed that a CpERh(I) complex generated in situ
已经确定,在催化量的电子缺陷的环戊二烯基铑(III)络合物的存在下,在二炔末端具有芳基的具有1,6-二炔的未官能化芳烃的二烯化继续进行,得到相应的二烯化芳烃。 ,[CpERhCl2] 2和化学计量的碳酸银。实验和理论机制研究表明,原位生成的CpERh(I)络合物可能催化当前的二烯基化反应。