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-coupling reactions of indium organometallics with 2,5-dibromothiophene is reported. Following an iterative coupling sequence, α-oligothiophenes were synthesized in good yields and with high atom economy.
铟有机金属化合物与钯的选择性和顺序钯催化交叉偶联反应合成不对称的2,5-二取代噻吩 2,5-二溴噻吩被报道。按照反复的偶联序列,以高收率和高原子经济性合成了α-低聚噻吩。