Trifluoromethyl-substituted pyridyl- and pyrazolylboronic acids and esters: synthesis and Suzuki–Miyaura cross-coupling reactions
作者:Kate M. Clapham、Andrei S. Batsanov、Martin R. Bryce、Brian Tarbit
DOI:10.1039/b901024f
日期:——
allows for further cross-couplings to yield tetra-substituted pyrazolyl derivatives (Scheme 5). X-Ray crystal structures are reported for selected pyridylboronic acids, pyrazolylboronic esters and derived trifluoromethyl-substituted heterobiaryl systems. These multi-ring CF3-substituted systems are of interest as buildingblocks for drug discovery and materials chemistry.