{"@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/1361699994220022784.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1021/ol901420p"}},{"identifier":{"@type":"URI","@value":"https://pubs.acs.org/doi/pdf/10.1021/ol901420p"}},{"identifier":{"@type":"PMID","@value":"19627108"}}],"dc:title":[{"@value":"2,8- and 2,9-Diboryltetracenes as Useful Building Blocks for Extended π-Conjugated Tetracenes"}],"description":[{"notation":[{"@value":"Ir-catalyzed direct diborylation of tetracene gave a 1:1 mixture of 2,8- and 2,9-bis[(pinacolato)boryl]tetracenes, which were separated by recrystallization. These diboryltetracenes are useful building blocks for the regiospecific synthesis of extended pi-conjugated tetracenes directed to semiconductors for organic field-effect transistors (OFETs). Syntheses of thiophene-tetracene-thiophene, thiophene-tetracene-bithiophene-tetracene-thiophene, and thiophene-tetracene-anthracene-tetracene-thiophene pi-systems have been achieved on the basis of the 2,8- and 2,9-diboryltetracenes."}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1381699994220022787","@type":"Researcher","foaf:name":[{"@value":"Takakazu Kimoto"}]},{"@id":"https://cir.nii.ac.jp/crid/1381699994220022786","@type":"Researcher","foaf:name":[{"@value":"Kenro Tanaka"}]},{"@id":"https://cir.nii.ac.jp/crid/1381699994220022784","@type":"Researcher","foaf:name":[{"@value":"Yoshimasa Sakai"}]},{"@id":"https://cir.nii.ac.jp/crid/1381699994220022785","@type":"Researcher","foaf:name":[{"@value":"Akira Ohno"}]},{"@id":"https://cir.nii.ac.jp/crid/1381699994220022789","@type":"Researcher","foaf:name":[{"@value":"Kenji Yoza"}]},{"@id":"https://cir.nii.ac.jp/crid/1381699994220022788","@type":"Researcher","foaf:name":[{"@value":"Kenji Kobayashi"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"15237060"},{"@type":"EISSN","@value":"15237052"}],"prism:publicationName":[{"@value":"Organic Letters"}],"dc:publisher":[{"@value":"American Chemical Society (ACS)"}],"prism:publicationDate":"2009-08-20","prism:volume":"11","prism:number":"16","prism:startingPage":"3658","prism:endingPage":"3661"},"reviewed":"false","url":[{"@id":"https://pubs.acs.org/doi/pdf/10.1021/ol901420p"}],"createdAt":"2009-07-23","modifiedAt":"2019-10-09","relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1050577309352704256","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Synthesis and optical reactivity of 6,13-α-diketoprecursors of 2,3,9,10-tetraalkylpentacenes in solution, films and crystals"}]},{"@id":"https://cir.nii.ac.jp/crid/1051130853467871616","@type":"Article","resourceType":"学術雑誌論文(journal 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