مشخصات پژوهش

صفحه نخست /Catalytic comparison of ...
عنوان Catalytic comparison of Pd-C60 complex and its non-fullerene form bearing phosphorus ylide in Csingle bondC coupling reactions
نوع پژوهش مقاله چاپ‌شده در مجلات علمی
کلیدواژه‌ها FullerenePhosphorus ylidePalladium complexSuzuki-Miyaura coupling reactionMizoroki-Heck coupling reactionX-ray analysis
چکیده The new fullerene-based Pd complex [(η2‐C60) Pd(Y)2] (1) and its non-fullerene form [(Y)PdCl2] (2) bearing unsymmetrical phosphorus ylide [Ph2P(CH2)2PPh2 = C(H)C(O)C6H4-p-CH3] (Y) were prepared through dissolving Y in related solvent in the presence of [C60Pd]n polymer or PdCl2(cod) (cod = 1,5-cyclooctadiene), respectively. The synthesized compounds were characterized using NMR (1H, 13C, and 31P), IR, UV–Visible, XRD, EDX, TGA/DTG/DTA, and SEM/TEM techniques. The crystal structure of compound Y was also obtained by X-ray analysis. The data proved that fullerene (C60) and two ylides were coordinated to Pd(0) center in complex 1 through [6], [6] bond and two free phosphorus atoms, respectively. Also, the reaction of the unsymmetric phosphorus ylide Y with PdCl2(cod) led to the Psingle bondC chelated complex 2. Finally, the catalytic properties of synthesized complexes were studied on Suzuki-Miyaura and Mizoroki-Heck Csingle bondC coupling reactions. By comparing catalytic properties of complexes, it was found that complex 1 including fullerene nanoparticle has more promising activity in Csingle bondC coupling reactions.
پژوهشگران سمیه فتاحی (نفر اول)، عابد یوسفی (نفر دوم)، محمد پناهی مهر (نفر سوم)، سیدجواد سیدزاده صابونچی (نفر چهارم)، رابرت گیبل (نفر پنجم)