Reductive Debenzylation of Hexabenzylhexaazaisowurtzitane using Multi-walled Carbon Nanotube-supported Palladium Catalysts: an Optimization Approach

• Autorzy: Bayat Y. , Malmir S. , Hajighasemali F. , Dehghani H.
• Języki publikacji: EN

Abstrakty

EN

This study focuses on the optimization of parameters affecting the reductive debenzylation of hexabenzylhexaazaisowurtzitane using multiwalled carbon nanotube-supported palladium catalysts. Initially the influence of functionalized carbon nanotubes, including OH and COOH groups, were compared with basic multi-walled carbon nanotubes, and their impact on the reaction yield was evaluated. Among these catalyst supports, hydroxylated multi-walled carbon nanotubes showed superior efficiency for producing tetraacetyldibenzylhexaazaisowurtzitane from hexabenzylhexaazaisowurtzitane. The effect of catalyst preparation factors on the reaction yield were screened by using a 25-2 fractional factorial design. Parameters, including percent palladium, adsorption time, pH and adsorption temperature, were optimized by applying a central composite design. The optimum values of these factors were: 12.97% Pd, adsorption time 1.81 h, pH 9.61 and adsorption temperature 42.78 °C. A value of 76% was obtained for the reaction yield under optimum conditions.

Słowa kluczowe

EN

HBIW; palladium catalyst; MWCNTs; CCD

• Wydawca: Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
• Czasopismo: Central European Journal of Energetic Materials
• Rocznik: 2015
• Tom: Vol. 12, no. 3
• Strony: 439--458
• Opis fizyczny: Bibliogr. 47 poz., rys., tab.

Twórcy

autor

Bayat Y.

• School of Chemistry and Chemical Engineering, Malek-Ashtar University of Technology, P.O. Box: 16765-3454 Tehran, Iran

autor

Malmir S.

• School of Chemistry and Chemical Engineering, Malek-Ashtar University of Technology, P.O. Box: 16765-3454 Tehran, Iran

autor

Hajighasemali F.

• School of Chemistry and Chemical Engineering, Malek-Ashtar University of Technology, P.O. Box: 16765-3454 Tehran, Iran

autor

Dehghani H.

• School of Chemistry and Chemical Engineering, Malek-Ashtar University of Technology, P.O. Box: 16765-3454 Tehran, Iran

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