{"@context":{"@vocab":"https://cir.nii.ac.jp/schema/1.0/","rdfs":"http://www.w3.org/2000/01/rdf-schema#","dc":"http://purl.org/dc/elements/1.1/","dcterms":"http://purl.org/dc/terms/","foaf":"http://xmlns.com/foaf/0.1/","prism":"http://prismstandard.org/namespaces/basic/2.0/","cinii":"http://ci.nii.ac.jp/ns/1.0/","datacite":"https://schema.datacite.org/meta/kernel-4/","ndl":"http://ndl.go.jp/dcndl/terms/","jpcoar":"https://github.com/JPCOAR/schema/blob/master/2.0/"},"@id":"https://cir.nii.ac.jp/crid/1362825894487579904.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1021/ja9012003"}},{"identifier":{"@type":"URI","@value":"https://pubs.acs.org/doi/pdf/10.1021/ja9012003"}},{"identifier":{"@type":"PMID","@value":"19456152"}}],"dc:title":[{"@value":"Layered Materials with Coexisting Acidic and Basic Sites for Catalytic One-Pot Reaction Sequences"}],"description":[{"notation":[{"@value":"Acidic montmorillonite-immobilized primary amines (H-mont-NH(2)) were found to be excellent acid-base bifunctional catalysts for one-pot reaction sequences, which are the first materials with coexisting acid and base sites active for acid-base tamdem reactions. For example, tandem deacetalization-Knoevenagel condensation proceeded successfully with the H-mont-NH(2), affording the corresponding condensation product in a quantitative yield. The acidity of the H-mont-NH(2) was strongly influenced by the preparation solvent, and the base-catalyzed reactions were enhanced by interlayer acid sites."}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1382825894487579905","@type":"Researcher","foaf:name":[{"@value":"Ken Motokura"}],"jpcoar:affiliationName":[{"@value":"Department of Chemistry, Graduate School of Science, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan"}]},{"@id":"https://cir.nii.ac.jp/crid/1382825894487579904","@type":"Researcher","foaf:name":[{"@value":"Mizuki Tada"}],"jpcoar:affiliationName":[{"@value":"Department of Chemistry, Graduate School of Science, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan"}]},{"@id":"https://cir.nii.ac.jp/crid/1382825894487579906","@type":"Researcher","foaf:name":[{"@value":"Yasuhiro Iwasawa"}],"jpcoar:affiliationName":[{"@value":"Department of Chemistry, Graduate School of Science, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"00027863"},{"@type":"EISSN","@value":"15205126"}],"prism:publicationName":[{"@value":"Journal of the American Chemical Society"}],"dc:publisher":[{"@value":"American Chemical Society (ACS)"}],"prism:publicationDate":"2009-05-20","prism:volume":"131","prism:number":"23","prism:startingPage":"7944","prism:endingPage":"7945"},"reviewed":"false","url":[{"@id":"https://pubs.acs.org/doi/pdf/10.1021/ja9012003"}],"createdAt":"2009-05-20","modifiedAt":"2023-03-09","foaf:topic":[{"@id":"https://cir.nii.ac.jp/all?q=Alkalies","dc:title":"Alkalies"},{"@id":"https://cir.nii.ac.jp/all?q=Amines","dc:title":"Amines"},{"@id":"https://cir.nii.ac.jp/all?q=Acids","dc:title":"Acids"},{"@id":"https://cir.nii.ac.jp/all?q=Catalysis","dc:title":"Catalysis"}],"relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1050582252660264832","@type":"Article","resourceType":"レビュー論文(review 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