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Synthesis Of Novel Benzimidazole Salts And Microwave-Assisted Catalytic Activity Of In Situ Generated Pd Nanoparticles From A Catalyst System Consisting Of Benzimidazol Salt, Pd(Oac)_2, And Base In A Suzuki-Miyaura Reaction, Ülkü Yilmaz, Hasan Küçükbay, Sevi̇m Türkteki̇n Çeli̇kesi̇r, Mehmet Akkurt, Orhan Büyükgüngör
Synthesis Of Novel Benzimidazole Salts And Microwave-Assisted Catalytic Activity Of In Situ Generated Pd Nanoparticles From A Catalyst System Consisting Of Benzimidazol Salt, Pd(Oac)_2, And Base In A Suzuki-Miyaura Reaction, Ülkü Yilmaz, Hasan Küçükbay, Sevi̇m Türkteki̇n Çeli̇kesi̇r, Mehmet Akkurt, Orhan Büyükgüngör
Turkish Journal of Chemistry
Novel benzimidazolium salts having N-benzyl or N-(4-substitutedbenzyl) groups were synthesized and their microwave-promoted catalytic activity for the Suzuki--Miyaura cross-coupling reaction were determined using in situ formed palladium(0) nanoparticles (PdNPs) from a catalytic system consisting of Pd(OAc)_2/K2CO_3 in DMF/H_2O. PdNPs were characterized by X-ray diffraction (XRD) pattern and particle size of in situ generated PdNPs from the Pd(111) plane was determined to be of diameter 19.6 nm by the Debye--Scherrer equation. Moreover, the yield of the Suzuki--Miyaura reactions with aryl iodides and aryl bromides was found to be nearly quantitative. The synthesized benzimidazole salts (1--5) were identified by ^1H and ^{13}C …
Comparative Study Of Microwave-Assisted And Conventional Synthesis Of Ibuprofen-Based Acyl Hydrazone Derivatives, Ayşe Uzgören Baran
Comparative Study Of Microwave-Assisted And Conventional Synthesis Of Ibuprofen-Based Acyl Hydrazone Derivatives, Ayşe Uzgören Baran
Turkish Journal of Chemistry
A series of potential biological active acyl hydrazone derivatives containing ibuprofen moiety (compounds 4a--4p) was synthesized by the condensation of ibuprofen hydrazone with aromatic aldehydes using conventional and microwave irradiation methods. The microwave method was found to be successful with nearly the same or higher yields and shorter reaction time, and it was more environmentally friendly compared to the conventional heating method. The chemical structures of the synthesized compounds were characterized by IR, ^1H NMR, and APT-NMR spectroscopy.