Palladium(II) complexes assembled on solid materials: as catalysts for the –NO2 (nitro) to –NH2 (amine) reactions

Dayan, Serkan; Kayacı, Nilgün; Özdemir, Namık; Dayan, Osman; Özpozan, Nilgün

doi:10.1007/s00706-020-02679-2

Cited by 6 publications

(1 citation statement)

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“…[ 48 ] When the latter is transformed into 1,4‐benzenediamine (4‐AA) via metal catalysts in the presence of NaBH 4 , this absorption peak progressively decreases as a function of time, with the appearance of a new peak at 305 nm corresponding to 4‐AA (Figure 12). [ 49–52 ]…”

Section: Resultsmentioning

confidence: 99%

Pd supported on locust bean gum as reusable green catalyst for Heck and Sonogashira coupling reactions and 4‐nitroaniline reduction under ultrasound irradiation

Romdhane

Atoui

Ktata

et al. 2022

Applied Organom Chemis

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An easy and environmentally friendly method has been developed for locust bean gum extraction from carob seeds to be used as natural support of palladium. The reaction was carried out in water under ultrasonic irradiation for a short period of time (30 min). This catalyst was characterized by different analytical techniques such as ultraviolet-visible (UV-vis), Fourier transform infrared (FTIR), thermogravimetric analysis (TGA), scanning electron microscopy/ energy dispersive X-ray spectroscopy (SEM/EDX), elemental mapping analysis, and X-ray diffraction (XRD). The catalytic activity of Pd supported by locust bean gum was studied in Heck and Sonogashira cross-coupling reactions in different conditions under ultrasonic irradiation. Likewise, it was examined as green catalyst of 4-nitroaniline reduction at room temperature in water. The reusability of the catalyst was verified for five consecutive cycles, where excellent yields were obtained.

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Section: Resultsmentioning

confidence: 99%