Exploring the Chemical Dynamics and Applications of 2-Ethyl Anthraquinone
Oct 24,2024
2-Ethylanthraquinone is yellow powder powder or glassy yellow flakey solid, is an important fine chemical material.
Chemical Properties
2-Ethylanthraquinone is soluble in organic solvents, it can undergo hydrogenation and acylation reactions.
Applications
2-Ethylanthraquinone is mainly used in the hydrogen peroxide synthetic catalyst, also for the preparation of Photoactive compounds, dyestuff, the fields such as light sieve resin, medicine and pesticide intermediate
Synthesis
A one-pot method is developed to synthesize 2-ethylanthraquinone using phthalic anhydride and ethylbenzene as feedstock by combination of acylation and dehydration over a Sc-modified Hβ catalyst. Sc-modified Hβ was prepared via impregnation and catalyzed conversion of phthalic anhydride about 58.8% and 2-ethylanthraquinone selectivity up to 78.5% which is better than the results by other metals-modified Hβ zeolites. By adjusting Sc loading amount in Hβ, more acids are created especially strong Lewis acid and an appropriate synergistic effect of Lewis/Bronsted acids is obtained for cascade reactions of acylation and dehydration. Then, the reaction conditions were investigated and the catalyst can be reused in 4 runs. This work provides a green and simple way for 2-ethylanthraquinone synthesis.1
References:
[1] CONGCONG JI . One-pot synthesis of 2-ethylanthraquinone from phthalic anhydride and ethylbenzene over a Sc-modified Hβ catalyst[J]. Chemical Engineering Science, 2022, 251. DOI:10.1016/j.ces.2022.117480.
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