Efficient Synthesis of Conjugated 1,3,4-Thiadiazole Hybrids through Palladium-Catalyzed Cross-Coupling of 2,5-Bis(4-bromophenyl)-1,3,4-thiadiazole with Boronic Acids
作者:Agnieszka Kudelko、Monika Wróblowska、Mieczysław Łapkowski
DOI:10.1055/s-0034-1378826
日期:——
New derivatives of 2,5-bis(4-heteroarylphenyl)-1,3,4-thiadiazole were synthesized under Suzuki cross-coupling reactions from 2,5-bis(4-bromophenyl)-1,3,4-thiadiazole and commercially available boronic acids. Reactions were conducted in a two-phase solvent system in the presence of catalytic amounts of tetrakis(triphenylphosphine)palladium(0), cesium carbonate as a base, and tetrabutylammonium bromide
2,5-双(4-杂芳基苯基)-1,3,4-噻二唑的新衍生物在铃木交叉偶联反应下由2,5-双(4-溴苯基)-1,3,4-噻二唑和商业化合成可用硼酸。在催化量的四(三苯基膦)钯(0)、作为碱的碳酸铯和作为相转移催化剂的四丁基溴化铵存在下,在两相溶剂系统中进行反应。