New derivatives of 1,3,4‐oxadiazole and 1,3,4‐thiadiazole were synthesized by a palladium catalyzed Suzuki cross‐coupling reaction under the conditions of the phase transfer catalysis. The structure of the products, the absorption and emission spectra were also studied.

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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. -(WROBLOWSKA, M.; KUDELKO*, A.; LAPKOWSKI, M.; Synlett 26 (2015) 15, 2127-2130, http://dx.doi.org/10.1055/s-0034-1378826 ; Dep. Chem. Org. Technol. Petrochem., Silesian Univ. Technol., PL-44-100 Gliwice, Pol.; Eng.) -M. Tismer 06-170

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New derivatives of 2,5-bis(4-heteroarylphenyl)-1,3,4-thiadiazole were synthesized under Suzuki cross-coupling reactions from 2,5bis(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 playing a role of a phase-transfer catalyst.