Synthesis of 4,6-disubstituted 2-(4-morpholinyl)pyrimidines by cross-coupling reactions using triorganoindium compounds
作者:M. Montserrat Martínez、Cristina Pérez-Caaveiro、Miguel Peña-López、Luis A. Sarandeses、José Pérez Sestelo
DOI:10.1039/c2ob26398j
日期:——
6-Disubstituted-2-(4-morpholinyl)pyrimidines, an important class of bioactive compounds, have been synthesized from 4,6-dichloro-2-(4-morpholinyl)pyrimidine by selective and sequential palladium-catalyzed cross-couplingreactionsusing triorganoindium reagents. This methodology, being efficient and versatile, allowed the synthesis of a variety of non-symmetrical pyrimidines functionalized at C-4 and C-6
Synthesis of functionalized thiophenes and oligothiophenes by selective and iterative cross-coupling reactions using indium organometallics
作者:M. Montserrat Martínez、Miguel Peña-López、José Pérez Sestelo、Luis A. Sarandeses
DOI:10.1039/c2ob25123j
日期:——
The synthesis of unsymmetrical 2,5-disubstituted thiophenes by selective and sequential palladium-catalyzed cross-couplingreactions of indiumorganometallics with 2,5-dibromothiophene is reported. Following an iterative coupling sequence, α-oligothiophenes were synthesized in good yields and with high atom economy.
Triorganoindium Reagents in Selective Palladium-Catalyzed Cross-Coupling with Iodoimidazoles: Synthesis of Neurodazine
作者:Cristina Pérez-Caaveiro、José Pérez Sestelo、M. Montserrat Martínez、Luis A. Sarandeses
DOI:10.1021/jo501664p
日期:2014.10.17
Triorganoindium reagents (R3In, R = aryl, heteroaryl, alkynyl) react selectively under palladium catalysis with N-benzyl-2,4,5-triiodoimidazole to afford the C-2 monocoupling products. The reaction proceeds efficiently for a variety of aryl- and heteroarylindium reagents with the transfer of all three organic groups attached to the metal. The coupling products can be used in a subsequent two-fold cross-coupling to give trisubstituted imidazoles in good yields. This approach was employed to synthesize neurodazine and analogues in good yields.