{"_buckets": {"deposit": "76a53dbe-4f43-4121-8dee-46596c0f5f06"}, "_deposit": {"id": "12725", "owners": [], "pid": {"revision_id": 0, "type": "depid", "value": "12725"}, "status": "published"}, "_oai": {"id": "oai:soar-ir.repo.nii.ac.jp:00012725", "sets": ["1222"]}, "author_link": ["39112", "39113", "39114", "39115"], "item_1628147817048": {"attribute_name": "出版タイプ", "attribute_value_mlt": [{"subitem_version_resource": "http://purl.org/coar/version/c_ab4af688f83e57aa", "subitem_version_type": "AM"}]}, "item_6_biblio_info_6": {"attribute_name": "書誌情報", "attribute_value_mlt": [{"bibliographicIssueDates": {"bibliographicIssueDate": "2006-09-25", "bibliographicIssueDateType": "Issued"}, "bibliographicIssueNumber": "39", "bibliographicPageEnd": "9225", "bibliographicPageStart": "9218", "bibliographicVolumeNumber": "62", "bibliographic_titles": [{"bibliographic_title": "Tetrahedron"}]}]}, "item_6_description_30": {"attribute_name": "資源タイプ（コンテンツの種類）", "attribute_value_mlt": [{"subitem_description": "Article", "subitem_description_type": "Other"}]}, "item_6_description_31": {"attribute_name": "フォーマット：mimeタイプ", "attribute_value_mlt": [{"subitem_description": "application/pdf", "subitem_description_type": "Other"}]}, "item_6_description_5": {"attribute_name": "引用", "attribute_value_mlt": [{"subitem_description": "Tetrahedron. 62(39): 9218-9225 (2006)", "subitem_description_type": "Other"}]}, "item_6_link_3": {"attribute_name": "信州大学研究者総覧へのリンク", "attribute_value_mlt": [{"subitem_link_text": "Suga, H", "subitem_link_url": "http://soar-rd.shinshu-u.ac.jp/profile/ja.HmShyVfp.html"}]}, "item_6_link_67": {"attribute_name": "WoS", "attribute_value_mlt": [{"subitem_link_text": "Web of Science", "subitem_link_url": "http://gateway.isiknowledge.com/gateway/Gateway.cgi?\u0026GWVersion=2\u0026SrcAuth=ShinshuUniv\u0026SrcApp=ShinshuUniv\u0026DestLinkType=FullRecord\u0026DestApp=WOS\u0026KeyUT=000240480300016"}]}, "item_6_publisher_4": {"attribute_name": "出版者", "attribute_value_mlt": [{"subitem_publisher": "PERGAMON-ELSEVIER SCIENCE LTD"}]}, "item_6_relation_46": {"attribute_name": "他の資源との関係：URI", "attribute_value_mlt": [{"subitem_relation_name": [{"subitem_relation_name_text": "http://www.elsevier.com/locate/issn/00404020"}], "subitem_relation_type_id": {"subitem_relation_type_id_text": "http://www.elsevier.com/locate/issn/00404020", "subitem_relation_type_select": "URI"}}]}, "item_6_relation_48": {"attribute_name": "DOI", "attribute_value_mlt": [{"subitem_relation_name": [{"subitem_relation_name_text": "10.1016/j.tet.2006.07.028"}], "subitem_relation_type_id": {"subitem_relation_type_id_text": "https://doi.org/10.1016/j.tet.2006.07.028", "subitem_relation_type_select": "DOI"}}]}, "item_6_select_64": {"attribute_name": "著者版フラグ", "attribute_value_mlt": [{"subitem_select_item": "author"}]}, "item_6_source_id_35": {"attribute_name": "ISSN", "attribute_value_mlt": [{"subitem_source_identifier": "0040-4020", "subitem_source_identifier_type": "ISSN"}]}, "item_6_source_id_39": {"attribute_name": "NII ISSN", "attribute_value_mlt": [{"subitem_source_identifier": "0040-4020", "subitem_source_identifier_type": "ISSN"}]}, "item_6_source_id_40": {"attribute_name": "書誌レコードID", "attribute_value_mlt": [{"subitem_source_identifier": "AA00861787", "subitem_source_identifier_type": "NCID"}]}, "item_6_text_69": {"attribute_name": "wosonly authkey", "attribute_value_mlt": [{"subitem_text_value": "carbonyl ylide; 1,3-dipolar cycloaddition; chiral Lewis acid; rare earth metal; diazocarbonyl compound; intramolecular carbenoid-carbonyl cyclization"}]}, "item_6_text_70": {"attribute_name": "wosonly keywords", "attribute_value_mlt": [{"subitem_text_value": "ENANTIOSELECTIVE 1,3-DIPOLAR CYCLOADDITION; CARBONYL YLIDE FORMATION; CHIRAL LEWIS-ACID; NITRONE CYCLOADDITIONS; CATALYST; ALKENES; STEREOSELECTIVITY; STEREOCONTROL; CARBENOIDS; AUXILIARY"}]}, "item_6_textarea_68": {"attribute_name": "wosonly abstract", "attribute_value_mlt": [{"subitem_textarea_value": "Highly enantioselective (96% ee) and endo-selective (\u003e 99:1) cycloaddition reactions were observed between carbonyl ylides, generated from o-(p-bromobenzyloxy)carbonyl-alpha-diazoacetophenone, and 3-crotonoyl-2-oxazolidinone using (4S,5S)-Pybox-4,5-Ph2Yb(OTf)(3) (20 mol %) as the chiral Lewis acid catalyst. In contrast, high exo-selectivity (exo/endo=82:18; 96% ee, exo) was observed for the reaction of o-methoxycarbonyl-alpha-diazoacetophenone with 3-acryloyl-2-oxazolidinone under similar conditions as reported previously. In the case of cycloaddition reactions between 2-benzopyrylium-4-olate, generated from o-methoxycarbonyl-a-diazoacetophenone, and 3-cinnamoyl- or 3-[(E)-3-(ethoxycarbonyl)propenoyl]-2-oxazolidinones, using the same chiral Lewis acid, the reaction favored the endoadduct with relatively good enantioselectivity (72 and 78% ee, respectively). (c) 2006 Elsevier Ltd. All rights reserved."}]}, "item_creator": {"attribute_name": "著者", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": "Suga,  H"}], "nameIdentifiers": [{"nameIdentifier": "39112", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Suzuki,  T"}], "nameIdentifiers": [{"nameIdentifier": "39113", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Inoue,  K"}], "nameIdentifiers": [{"nameIdentifier": "39114", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Kakehi,  A"}], "nameIdentifiers": [{"nameIdentifier": "39115", "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": "2015-09-28"}], "displaytype": "detail", "download_preview_message": "", "file_order": 0, "filename": "Asymmetric_Cycloaddition.pdf", "filesize": [{"value": "380.6 kB"}], "format": "application/pdf", "future_date_message": "", "is_thumbnail": false, "licensetype": "license_note", "mimetype": "application/pdf", "size": 380600.0, "url": {"label": "Asymmetric_Cycloaddition.pdf", "url": "https://soar-ir.repo.nii.ac.jp/record/12725/files/Asymmetric_Cycloaddition.pdf"}, "version_id": "8e55e193-2949-478b-b67d-d4ce1ecce78f"}]}, "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": "journal article", "resourceuri": "http://purl.org/coar/resource_type/c_6501"}]}, "item_title": "Asymmetric cycloaddition reactions between 2-benzopyrylium-4-olates and 3-(2-alkenoyl)-2-oxazolidinones in the presence of 2,6-bis(oxazolinyl)pyridine-lanthanoid complexes", "item_titles": {"attribute_name": "タイトル", "attribute_value_mlt": [{"subitem_title": "Asymmetric cycloaddition reactions between 2-benzopyrylium-4-olates and 3-(2-alkenoyl)-2-oxazolidinones in the presence of 2,6-bis(oxazolinyl)pyridine-lanthanoid complexes", "subitem_title_language": "en"}]}, "item_type_id": "6", "owner": "1", "path": ["1222"], "permalink_uri": "http://hdl.handle.net/10091/140", "pubdate": {"attribute_name": "PubDate", "attribute_value": "2007-04-04"}, "publish_date": "2007-04-04", "publish_status": "0", "recid": "12725", "relation": {}, "relation_version_is_last": true, "title": ["Asymmetric cycloaddition reactions between 2-benzopyrylium-4-olates and 3-(2-alkenoyl)-2-oxazolidinones in the presence of 2,6-bis(oxazolinyl)pyridine-lanthanoid complexes"], "weko_shared_id": -1}