Wang, Honggen published the artcileMild Rh(III)-catalyzed C-H activation and annulation with alkyne MIDA boronates: short, efficient synthesis of heterocyclic boronic acid derivatives, Recommanded Product: O-Pivaloylhydroxylamine trifluoromethanesulfonate, the publication is Journal of the American Chemical Society (2012), 134(48), 19592-19595, database is CAplus and MEDLINE.
¦Á-Alkynyl MIDA boronate complex HCú·CB[(OCOCH2)2NMe-N,O,O’] (2a) reacts with substituted N-pivaloyloxybenzamides giving R-1(2H)-isoquinolinone-substituted MIDA boronate RC9H5N(1-O)-3-B[(OCOCH2)2NMe-N,O,O’] (3a–q, R = H, 6-Me, 6-tBu, 6-Ph, 6-OMe, 6-halo, 6-CF3, 6-CN, 6-CO2Me, 6-NO2, 7-Me, 7-CF3, 7-I, 7-OMe); annelated furan, thiophene and indole derivatives were also prepared The annelation is catalyzed by rhodium half-sandwich dimer [Rh2Cp*2(¦Ì-Cl)2Cl2] in the presence of a base, CsOPiv and copper acetate cocatalyst. Taking advantage of Rh(III)-catalyzed C-H activation reactions, we have developed a mild, short, and efficient method for the synthesis of bench-stable 3-isoquinolone MIDA boronates. The reaction is practical and scalable. The product formed has been applied in the Suzuki-Miyaura reaction with high efficiency. This strategy has also been successfully expanded to the synthesis of MIDA boronate functionalized heterocycles such as isoquinoline, pyrrole, and indole.
Journal of the American Chemical Society published new progress about 1293990-73-4. 1293990-73-4 belongs to catalysis-chemistry, auxiliary class Aliphatic Chain, name is O-Pivaloylhydroxylamine trifluoromethanesulfonate, and the molecular formula is C37H30ClIrOP2, Recommanded Product: O-Pivaloylhydroxylamine trifluoromethanesulfonate.
Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia