Ru-Catalyzed Arene Hydrogenation: A Highly Efficient and Selective Process for Preparing Trans-Trans Isomer of 4,4'-Diamino-Dicyclohexy

Yu Xiang Wang; Dan Dan Li; Xing Huang; Ya Juan Zhao

doi:10.4028/www.scientific.net/AMR.393-395.1413

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 393-395Ru-Catalyzed Arene Hydrogenation: A Highly...

Ru-Catalyzed Arene Hydrogenation: A Highly Efficient and Selective Process for Preparing Trans-Trans Isomer of 4,4'-Diamino-Dicyclohexy

Abstract:

The selective hydrogenation of 4,4'-methylenedianiline(MDA) over Ru/γ-Al2O3 was investigated in the presence of diamine and base. Under the optimum conditions: the reaction temperature of 448K, H2 pressure of 1100 psig , and reaction time of 5h, the conversion of 4,4'-methylenedianiline was close to 100% and the selectivity to trans-trans isomer of 4,4'-diamino-dicyclohexy was less than 20%.

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Periodical:

Advanced Materials Research (Volumes 393-395)

Pages:

1413-1416

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.393-395.1413

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Online since:

November 2011

Authors:

Yu Xiang Wang, Dan Dan Li, Xing Huang, Ya Juan Zhao

Keywords:

4,4'-Diamino-Dicyclohexy, Ruthenium, Selective Hydrogenation

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