{"created":"2021-03-01T06:38:58.251453+00:00","id":30630,"links":{},"metadata":{"_buckets":{"deposit":"58b8e2c6-2c52-4fb1-9edf-99cba2ba3593"},"_deposit":{"id":"30630","owners":[],"pid":{"revision_id":0,"type":"depid","value":"30630"},"status":"published"},"_oai":{"id":"oai:nagoya.repo.nii.ac.jp:00030630","sets":["320:2524:2525:2533"]},"author_link":["101801"],"item_1615768549627":{"attribute_name":"出版タイプ","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_970fb48d4fbd8a85","subitem_version_type":"VoR"}]},"item_9_biblio_info_6":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1997-03-31","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"2","bibliographicPageEnd":"234","bibliographicPageStart":"194","bibliographicVolumeNumber":"48","bibliographic_titles":[{"bibliographic_title":"Memoirs of the School of Engineering, Nagoya University","bibliographic_titleLang":"en"}]}]},"item_9_description_4":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"The acid catalysis of heteropolyacid and its acidic salts for various types of industrial organic reactions has been studied in the reaction systems of homogeneous liquid phase and heterogeneous liquid and vapor phases. Heteropolyacid was a very effective Br[ö]nsted acid catalyst for the reactions involving carbenium cations, oxonium ions, and oxocarbocations: alkene hydration, ether cleavage reactions including ring opening reactions of epoxide, esterification, transesterification, and Friedel-Crafts alkylation and acylation reactions. At the same proton concentrations and the same ionic strengths, the catalytic activity of heteropolyacid was 3 to 100 times higher than those of the ordinary protonic acids such as sulfuric, nitric, perchloric, and phosphoric acids. The high catalytic activity of heteropolyacid was elucidated by a unique property of heteropoly anion to be able to stabilize the cationic intermediates. Heteropolyacid was effectively be applied as a protonic acid catalyst to several industrially important organic reactions in the forms of a homogeneous solution catalyst and a heterogeneous supported catalyst. Acidic alkali metal salts of heteropolyacid could effectively be applied as insoluble and readily separable solid acid catalysts to the Friedel-Crafts reactions in highly polar organic solvents. Tungstophosphoric acid, as well as its acidic cesium salt, was immobilized in the silica matrix by means of sol-gel technique. Silica-included heteropoly compounds efficiently worked for the hydrolysis of esters as water-insoluble solid acid catalysts.","subitem_description_language":"en","subitem_description_type":"Abstract"}]},"item_9_identifier_registration":{"attribute_name":"ID登録","attribute_value_mlt":[{"subitem_identifier_reg_text":"10.18999/memsenu.48.2.194","subitem_identifier_reg_type":"JaLC"}]},"item_9_publisher_32":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"School of Engineering, Nagoya University","subitem_publisher_language":"en"}]},"item_9_select_15":{"attribute_name":"著者版フラグ","attribute_value_mlt":[{"subitem_select_item":"publisher"}]},"item_9_source_id_7":{"attribute_name":"ISSN（print）","attribute_value_mlt":[{"subitem_source_identifier":"0919-0805","subitem_source_identifier_type":"PISSN"}]},"item_access_right":{"attribute_name":"アクセス権","attribute_value_mlt":[{"subitem_access_right":"open access","subitem_access_right_uri":"http://purl.org/coar/access_right/c_abf2"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Izumi, Yusuke","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"101801","nameIdentifierScheme":"WEKO"}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2020-10-23"}],"displaytype":"detail","filename":"48-2-03.pdf","filesize":[{"value":"3.9 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"48-2-03.pdf","objectType":"fulltext","url":"https://nagoya.repo.nii.ac.jp/record/30630/files/48-2-03.pdf"},"version_id":"5a19dcf5-db77-434e-b251-899b5a9d1b6b"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"catalysis","subitem_subject_scheme":"Other"},{"subitem_subject":"heteropolyacid","subitem_subject_scheme":"Other"},{"subitem_subject":"solid acids","subitem_subject_scheme":"Other"},{"subitem_subject":"silica inclusion","subitem_subject_scheme":"Other"},{"subitem_subject":"industrial organic reactions","subitem_subject_scheme":"Other"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"eng"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"departmental bulletin paper","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"Acid catalysis of heteropoly compounds for industrial organic reactions","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Acid catalysis of heteropoly compounds for industrial organic reactions","subitem_title_language":"en"}]},"item_type_id":"9","owner":"1","path":["2533"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2020-10-23"},"publish_date":"2020-10-23","publish_status":"0","recid":"30630","relation_version_is_last":true,"title":["Acid catalysis of heteropoly compounds for industrial organic reactions"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-01-16T04:45:35.769728+00:00"}