Regioselective Synthesis of Trialkylpyrazines via Nickel-Catalyzed Negishi Cross-Coupling of Pyrazine Triflate
作者:Kee-In Lee、Arigala Pitchaiah、In Hwang、Jin-Soo Hwang、Hyungrok Kim
DOI:10.1055/s-0031-1290972
日期:2012.6
A regioselective synthesis of trialkylpyrazines via nickel-catalyzed cross-coupling reaction of pyrazine triflate is reported. The 5-substituted 2,3-dimethylpyrazine derivatives including trail pheromone components of the ant Eutetramorium mocquerysi have been successfully synthesized in good yields by nickel-catalyzed Negishi cross-coupling reactions of pyrazine triflate mediated by alkyl and arylzinc halides.
Ir-Catalyzed Borylation of CH Bonds in N-Containing Heterocycles: Regioselectivity in the Synthesis of Heteroaryl Boronate Esters
作者:Ibraheem A. I. Mkhalid、David N. Coventry、David Albesa-Jove、Andrei S. Batsanov、Judith A. K. Howard、Robin N. Perutz、Todd B. Marder