Synthesis of D–A–A and D–A–D Pyrimidine π-Systems Using Triorganoindium Reagents: Optical, Vibrational, and Electrochemical Studies
作者:Cristina Pérez-Caaveiro、María Moreno Oliva、Juan T. López Navarrete、José Pérez Sestelo、M. Montserrat Martínez、Luis A. Sarandeses
DOI:10.1021/acs.joc.9b00643
日期:2019.7.19
series of donor–acceptor–acceptor (D–A–A) and donor–acceptor–donor (D–A–D) systems based on a pyrimidine π-spacer with various substituents at the C-2 position has been successfully prepared. The synthesis involved site-selective palladium cross-coupling reactions of chloropyrimidines with triorganoindium reagents and proceed in good yields and with atom economy. 4-(N,N-Diphenylamino)phenyl was chosen
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.