Palladium-Catalyzed Cross-Coupling Reactions of 2-Pyridylborates with Air-Stable HASPO Preligands
作者:Lutz Ackermann、Harish Potukuchi
DOI:10.1055/s-0029-1218020
日期:2009.10
A novel, air-stable TADDOLP(O)H derivative bearing electron-withdrawing substituents allows for efficient Suzuki-Miyaura cross-couplings with challenging electron-deficient 2-pyr-idylborates as nucleophiles.
Lithium trihydroxy/triisopropoxy-2-pyridylborate salts (LTBS): synthesis, isolation, and use in modified Suzuki–Miyaura cross-coupling reactions
作者:Kuanchiang Chen、Richard Peterson、Shivanand K. Math、James B. LaMunyon、Charles A. Testa、Dustin R. Cefalo
DOI:10.1016/j.tetlet.2012.06.145
日期:2012.9
and triisopropoxy 2-borate salts (LTBS) for use in modified Suzuki–Miyauracross-coupling reactions that can be produced in quantities greater than one hundred grams. Pyridyl LTBS provide a viable cross-coupling alternative to unstable 2-pyridylboronic acids, boronates, and trifluoroborate salt derivatives. We also demonstrate the synthesis and cross-coupling of shelf-stable LTBS reagents of other sp2-hybridized