ArticleACS omega2026
Preparation of 1,2-Propanediol via One-Pot Reaction of Propylene and Hydrogen Peroxide Catalyzed by Hollow Titanium Silicalite and Sn‑β Catalyst.
Article in ACS omega, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
1,2-Propanediol is an important chemical typically synthesized from propylene oxide. In this work, 1,2-propanediol was prepared via a one-pot process starting from propylene and hydrogen peroxide, catalyzed by hollow titanium silicalite (HTS) and Sn-β in an aqueous solution. The effects of reaction conditions were investigated, and the combined HTS and Sn-β catalyst exhibited good catalytic performance for the production of 1,2-propanediol. Under optimal conditions, the hydrogen peroxide conversion and 1,2-propanediol selectivity reached 96.8% and 92.8%, respectively. In this system, HTS catalyzes the epoxidation of propylene, while Sn-β promotes the hydrolysis of the intermediate propylene oxide to form 1,2-propanediol. Thus, HTS and Sn-β cocatalyze the epoxidation-hydrolysis tandem reaction. The combined catalyst was recycled 20 times without an obvious decrease in hydrogen peroxide conversion or 1,2-propanediol selectivity, demonstrating its stable performance.
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