Polymerisation von Tetrahydrofuran und 7‐oxa‐bicyclo[2,2,1]heptan in Gegenwart aluminiumorganischer Katalysatorsysteme

Weissermel, Von K.; Nölken, E.

doi:10.1002/macp.1963.020680110

Cited by 39 publications

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References 11 publications

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“…Dioxane and its derivatives are valuable compounds in industry as they can be used as solvents, wetting/dispersing agents, and commercial starting materials in various reactions . The synthesis of cyclic dimers by different methods has been reported, however, their direct synthesis from epoxides in high yields has rarely been described.…”

Section: Introductionmentioning

confidence: 99%

One‐Step Synthesis of 2,5‐Bis(chloromethyl)‐1,4‐dioxane from Epichlorohydrin Using ZIF‐8, Taking Advantage of Structural Defects

et al. 2017

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We demonstrate herein the ZIF‐8‐only‐mediated catalysis of the cyclodimerization of epichlorohydrin to 2,5‐bis(chloromethyl)‐1,4‐dioxane in the absence of co‐catalyst and solvent. The easy handling and economic aspects of ZIF‐8, in addition to the one‐step reaction to produce the cyclodimer, make this catalyst attractive even for industry. It has been clearly illustrated that the nature of the method used to synthesize ZIF‐8 affected the yields of the cyclodimers. Specifically, the method employed to produce ZIF‐8 directly influences the amount of crystal structural defects, which in turn impacts their performance as catalysts. To emphasize the role of defects, other physical properties, such as surface area and particle size, were controlled during the synthesis of the ZIF‐8 catalysts. Remarkably, the amount of structural defects was quantified by temperature program desorption analysis.

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Section: Introductionmentioning

confidence: 99%