ログイン
言語:

WEKO3

  • トップ
  • ランキング
To
lat lon distance
To

Field does not validate



インデックスリンク

インデックスツリー

メールアドレスを入力してください。

WEKO

One fine body…

WEKO

One fine body…

アイテム

{"_buckets": {"deposit": "1cb3fab1-006f-4663-9bc9-c50f0d963d7e"}, "_deposit": {"id": "28279", "owners": [], "pid": {"revision_id": 0, "type": "depid", "value": "28279"}, "status": "published"}, "_oai": {"id": "oai:niigata-u.repo.nii.ac.jp:00028279", "sets": ["456", "1588"]}, "item_7_alternative_title_1": {"attribute_name": "その他のタイトル", "attribute_value_mlt": [{"subitem_alternative_title": "ベンズアルデヒド類の熱分解反応機構"}]}, "item_7_biblio_info_6": {"attribute_name": "書誌情報", "attribute_value_mlt": [{"bibliographicIssueDates": {"bibliographicIssueDate": "2014-09", "bibliographicIssueDateType": "Issued"}, "bibliographicIssueNumber": "1", "bibliographicPageEnd": "63", "bibliographicPageStart": "57", "bibliographicVolumeNumber": "67", "bibliographic_titles": [{"bibliographic_title": "新潟大学農学部研究報告"}, {"bibliographic_title": "新潟大学農学部研究報告", "bibliographic_titleLang": "en"}]}]}, "item_7_description_4": {"attribute_name": "抄録", "attribute_value_mlt": [{"subitem_description": "Benzaldehydes are major products of biomass pyrolysis that undergo further pyrolysis reactions, including elimination of pendant groups on the benzene ring, and condensation to form polycyclic aromatic hydrocarbons. To elucidate these secondary reactions that occur during the pyrolysis of biomass, the analytical pyrolysis of 4-hydroxybenzaldehyde (HBA), vanillin (VL), syringaldehyde (SA) and veratrumaldehyde (VA) was performed via pyrolysis-gas chromatography/mass spectrometry (Py-GC/MS), and the mechanisms for formation of secondary products were evaluated. Four pyrolysis products from SA and eleven pyrolysis products from VA were identified, while only two pyrolysates were detected from HBA and VL. On the basis of these results, several major pyrolysis mechanisms were proposed. The most common pyrolysis reactions involved the homolytic elimination, and addition of ·H, ·OH, ·CHO, and ·OCH_3, while the homolytic elimination of methyl group from methoxy group, and rearrangement of the methoxy group occurred infrequently. Furthermore, benzaldehydes with a phenolic hydroxyl group were stabilized by conjugation of the aromatic ring with the phenolic–OH, and fewer pyrolysis products were produced than were obtained from compounds with non-phenolic benzyl alcohol groups, such as VA.", "subitem_description_type": "Abstract"}, {"subitem_description": "ベンズアルデヒド類はバイオマスの熱分解における主要な反応生成物であり、それらはさらにベンゼン環の置換基の脱離反応や多環芳香族(炭や煤)を形成するような縮合反応へと反応が進行していく。これらの熱分解2次反応を明らかにするために、4-hudroxybenzaldehyde(HBA), vanillin(VL), syringaldehyde(SA), veratrumaldehyde(VA)をモデル化合物として熱分解− GC/MS を行い、2次熱分解反応機構を検討した。HBA やVL からの熱分解生成物は2種しか検出されず、その反応機構が単純であったが、SA からは4種、さらにVA からは11種の熱分解生成物が検出され、2次熱分解反応が多様であることが示された。これらの基本的な熱分解反応はH·、HO·、OHC·、H_3CO· などのホモリテイックなラジカル開裂や付加反応、それにメトキシル基からのメチル基の脱離やメトキシル基の分子内転移によるメチル基の生成を含む。さらにベンジル位のアルデヒド基はフェノール性水酸基と共役して熱分解反応に対して安定化していることが、その熱分解生成物の少なさから推測された。", "subitem_description_type": "Abstract"}]}, "item_7_full_name_3": {"attribute_name": "著者別名", "attribute_value_mlt": [{"nameIdentifiers": [{"nameIdentifier": "162477", "nameIdentifierScheme": "WEKO"}], "names": [{"name": "赤澤, みなみ"}]}, {"nameIdentifiers": [{"nameIdentifier": "162478", "nameIdentifierScheme": "WEKO"}], "names": [{"name": "小島, 康夫"}]}, {"nameIdentifiers": [{"nameIdentifier": "162479", "nameIdentifierScheme": "WEKO"}], "names": [{"name": "加藤, 喜明"}]}]}, "item_7_publisher_7": {"attribute_name": "出版者", "attribute_value_mlt": [{"subitem_publisher": "新潟大学農学部"}]}, "item_7_select_19": {"attribute_name": "著者版フラグ", "attribute_value_mlt": [{"subitem_select_item": "publisher"}]}, "item_7_source_id_11": {"attribute_name": "書誌レコードID", "attribute_value_mlt": [{"subitem_source_identifier": "AN00183393", "subitem_source_identifier_type": "NCID"}]}, "item_7_source_id_9": {"attribute_name": "ISSN", "attribute_value_mlt": [{"subitem_source_identifier": "03858634", "subitem_source_identifier_type": "ISSN"}]}, "item_creator": {"attribute_name": "著者", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": "Akazawa, Minami"}], "nameIdentifiers": [{"nameIdentifier": "162474", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Kojima, Yasuo"}], "nameIdentifiers": [{"nameIdentifier": "162475", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Kato, Yoshiaki"}], "nameIdentifiers": [{"nameIdentifier": "162476", "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": "2019-08-20"}], "displaytype": "detail", "download_preview_message": "", "file_order": 0, "filename": "67(1)_57-63.pdf", "filesize": [{"value": "1.5 MB"}], "format": "application/pdf", "future_date_message": "", "is_thumbnail": false, "licensetype": "license_free", "mimetype": "application/pdf", "size": 1500000.0, "url": {"label": "67(1)_57-63.pdf", "url": "https://niigata-u.repo.nii.ac.jp/record/28279/files/67(1)_57-63.pdf"}, "version_id": "d7e58600-c011-467c-aafc-899215dd3d43"}]}, "item_keyword": {"attribute_name": "キーワード", "attribute_value_mlt": [{"subitem_subject": "analytical pyrolysis", "subitem_subject_scheme": "Other"}, {"subitem_subject": "reaction mechanism", "subitem_subject_scheme": "Other"}, {"subitem_subject": "lignin", "subitem_subject_scheme": "Other"}, {"subitem_subject": "benzaldehydes", "subitem_subject_scheme": "Other"}, {"subitem_subject": "分析熱分解", "subitem_subject_scheme": "Other"}, {"subitem_subject": "反応機構", "subitem_subject_scheme": "Other"}, {"subitem_subject": "リグニン", "subitem_subject_scheme": "Other"}, {"subitem_subject": "ベンズアルデヒド", "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": "Reaction mechanisms for pyrolysis of benzaldehydes", "item_titles": {"attribute_name": "タイトル", "attribute_value_mlt": [{"subitem_title": "Reaction mechanisms for pyrolysis of benzaldehydes"}, {"subitem_title": "Reaction mechanisms for pyrolysis of benzaldehydes", "subitem_title_language": "en"}]}, "item_type_id": "7", "owner": "1", "path": ["456", "1588"], "permalink_uri": "http://hdl.handle.net/10191/30052", "pubdate": {"attribute_name": "公開日", "attribute_value": "2014-10-06"}, "publish_date": "2014-10-06", "publish_status": "0", "recid": "28279", "relation": {}, "relation_version_is_last": true, "title": ["Reaction mechanisms for pyrolysis of benzaldehydes"], "weko_shared_id": null}
  1. 0 資料タイプ別
  2. 03 紀要論文
  1. 070 農学部
  2. 20 紀要
  3. 01 新潟大学農学部研究報告
  4. 第67巻第1号

Reaction mechanisms for pyrolysis of benzaldehydes

http://hdl.handle.net/10191/30052
http://hdl.handle.net/10191/30052
a246401c-888b-4012-8909-82bd6e6245fa
名前 / ファイル ライセンス アクション
67(1)_57-63.pdf 67(1)_57-63.pdf (1.5 MB)
Item type 紀要論文 / Departmental Bulletin Paper(1)
公開日 2014-10-06
タイトル
タイトル Reaction mechanisms for pyrolysis of benzaldehydes
タイトル
言語 en
タイトル Reaction mechanisms for pyrolysis of benzaldehydes
言語
言語 eng
キーワード
主題Scheme Other
主題 analytical pyrolysis
キーワード
主題Scheme Other
主題 reaction mechanism
キーワード
主題Scheme Other
主題 lignin
キーワード
主題Scheme Other
主題 benzaldehydes
キーワード
主題Scheme Other
主題 分析熱分解
キーワード
主題Scheme Other
主題 反応機構
キーワード
主題Scheme Other
主題 リグニン
キーワード
主題Scheme Other
主題 ベンズアルデヒド
資源タイプ
資源 http://purl.org/coar/resource_type/c_6501
タイプ departmental bulletin paper
その他のタイトル
その他のタイトル ベンズアルデヒド類の熱分解反応機構
著者 Akazawa, Minami

× Akazawa, Minami

WEKO 162474

Akazawa, Minami

Search repository
Kojima, Yasuo

× Kojima, Yasuo

WEKO 162475

Kojima, Yasuo

Search repository
Kato, Yoshiaki

× Kato, Yoshiaki

WEKO 162476

Kato, Yoshiaki

Search repository
著者別名
識別子 162477
識別子Scheme WEKO
姓名 赤澤, みなみ
著者別名
識別子 162478
識別子Scheme WEKO
姓名 小島, 康夫
著者別名
識別子 162479
識別子Scheme WEKO
姓名 加藤, 喜明
抄録
内容記述タイプ Abstract
内容記述 Benzaldehydes are major products of biomass pyrolysis that undergo further pyrolysis reactions, including elimination of pendant groups on the benzene ring, and condensation to form polycyclic aromatic hydrocarbons. To elucidate these secondary reactions that occur during the pyrolysis of biomass, the analytical pyrolysis of 4-hydroxybenzaldehyde (HBA), vanillin (VL), syringaldehyde (SA) and veratrumaldehyde (VA) was performed via pyrolysis-gas chromatography/mass spectrometry (Py-GC/MS), and the mechanisms for formation of secondary products were evaluated. Four pyrolysis products from SA and eleven pyrolysis products from VA were identified, while only two pyrolysates were detected from HBA and VL. On the basis of these results, several major pyrolysis mechanisms were proposed. The most common pyrolysis reactions involved the homolytic elimination, and addition of ·H, ·OH, ·CHO, and ·OCH_3, while the homolytic elimination of methyl group from methoxy group, and rearrangement of the methoxy group occurred infrequently. Furthermore, benzaldehydes with a phenolic hydroxyl group were stabilized by conjugation of the aromatic ring with the phenolic–OH, and fewer pyrolysis products were produced than were obtained from compounds with non-phenolic benzyl alcohol groups, such as VA.
抄録
内容記述タイプ Abstract
内容記述 ベンズアルデヒド類はバイオマスの熱分解における主要な反応生成物であり、それらはさらにベンゼン環の置換基の脱離反応や多環芳香族(炭や煤)を形成するような縮合反応へと反応が進行していく。これらの熱分解2次反応を明らかにするために、4-hudroxybenzaldehyde(HBA), vanillin(VL), syringaldehyde(SA), veratrumaldehyde(VA)をモデル化合物として熱分解− GC/MS を行い、2次熱分解反応機構を検討した。HBA やVL からの熱分解生成物は2種しか検出されず、その反応機構が単純であったが、SA からは4種、さらにVA からは11種の熱分解生成物が検出され、2次熱分解反応が多様であることが示された。これらの基本的な熱分解反応はH·、HO·、OHC·、H_3CO· などのホモリテイックなラジカル開裂や付加反応、それにメトキシル基からのメチル基の脱離やメトキシル基の分子内転移によるメチル基の生成を含む。さらにベンジル位のアルデヒド基はフェノール性水酸基と共役して熱分解反応に対して安定化していることが、その熱分解生成物の少なさから推測された。
書誌情報 新潟大学農学部研究報告
en : 新潟大学農学部研究報告

巻 67, 号 1, p. 57-63, 発行日 2014-09
出版者
出版者 新潟大学農学部
ISSN
収録物識別子タイプ ISSN
収録物識別子 03858634
書誌レコードID
収録物識別子タイプ NCID
収録物識別子 AN00183393
著者版フラグ
値 publisher
戻る
0
views
See details
Views

Versions

Ver.1 2021-03-01 11:04:47.484870
Show All versions

Share

Mendeley Twitter Facebook Print Addthis

Cite as

エクスポート

OAI-PMH
  • OAI-PMH JPCOAR
  • OAI-PMH DublinCore
  • OAI-PMH DDI
Other Formats
  • JSON
  • BIBTEX

Confirm


Powered by WEKO3


Powered by WEKO3