MoO3 on zeolites MCM-22, MCM-56 and 2D-MFI as catalysts for 1-octene metathesis
نویسندگان
چکیده
منابع مشابه
Mesostructured zeolites: bridging the gap between zeolites and MCM-41.
Surfactant-templating is one of the most versatile and useful techniques to implement mesoporous systems into solid materials. Various strategies based on various interactions between surfactants and solid precursors have been explored to produce new structures. Zeolites are invaluable as size- and shape-selective solid acid catalysts. Nevertheless, their micropores impose limitations on the ma...
متن کاملRu complexes of Hoveyda–Grubbs type immobilized on lamellar zeolites: activity in olefin metathesis reactions
Hoveyda-Grubbs type catalysts with cationic tags on NHC ligands were linker-free immobilized on the surface of lamellar zeolitic supports (MCM-22, MCM-56, MCM-36) and on mesoporous molecular sieves SBA-15. The activity of prepared hybrid catalysts was tested in olefin metathesis reactions: the activity in ring-closing metathesis of citronellene and N,N-diallyltrifluoroacetamide decreased in the...
متن کاملStudies on MCM–D interconnections
In the context of the development of the ATLAS Pixel Detector [1], a multi chip module technology called MCM–D (multi chip module deposited) has been studied to implement the high density interconnect. The results of some first assemblies using ’standard’ sensor designs have been reported in [2]. The focus of this note is on the first results of assemblies optimized to the capabilities of this ...
متن کاملTi-MCM-41 materials synthesised at room temperature as catalysts for cyclisation of (±)-citronellal
Citronellal can be cyclised to produce isopulegol, which is an intermediate in the synthesis of menthols. These chemicals are all used in the fragrance industry and menthol is also an important product used as a flavour, a pharmaceutical and in oral care. The cyclisation of citronellal proceeds readily with various homogeneous catalysts, but the catalyst frequently cannot be recovered and reuse...
متن کاملThe aqueous colloidal suspension of ultrathin 2D MCM-22P crystallites.
The action of a tetrapropylammonium hydroxide solution on lamellar zeolite precursor MCM-22P produced a stable aqueous colloidal suspension which was shown by X-ray diffraction, small angle X-ray scattering and atomic force microscopy to contain ultrathin two-dimensional (2D) crystallites, including one-unit cell thick (i.e., 2.5 nm) monolayers.
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ژورنال
عنوان ژورنال: Beilstein Journal of Organic Chemistry
سال: 2018
ISSN: 1860-5397
DOI: 10.3762/bjoc.14.272