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Acrylic acid is an important industrial chemical, and efficient catalysts for its direct preparation by propane oxidation are highly desirable. For this purpose, neutral silica networks were introduced on the surface of MoVTeNb mixed oxide catalysts by controlled silylation using a methyl silicate oligomer (MS-51). The modified catalysts gave ∼56.5% yield of acrylic acid with a selectivity of 77.1%...
A generally applicable efficient method was developed for assembly of structurally defined sulfated oligosaccharides. Using a reductive amination reaction at low pH with newly designed linkers possessing multiple aromatic amino groups, facile preparations of oligosaccharide assemblies were achieved without any alteration in the sulfated oligosaccharide parts.
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