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Electrostatic effects of acyl groups on the polymerization of monolignol

Research Project

Project/Area Number 15K14777
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Wood science
Research InstitutionToyama Prefectural University

Principal Investigator

Kishimoto Takao  富山県立大学, 工学部, 准教授 (60312394)

Project Period (FY) 2015-04-01 – 2017-03-31
Project Status Completed (Fiscal Year 2016)
Budget Amount *help
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2016: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2015: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywordsリグニン / 脱水素重合 / アシル基 / HRP
Outline of Final Research Achievements

Recently, highly acylated (acetylated and/or p-coumaroylated) lignins were isolated from the herbaceous plants sisal, kenaf, abaca, and curaua. The structures of all these highly acylated lignins were characterized by the significant predominance of β-O-4 structures (up to 94%). In this investigation, biomimetic oxidations of sinapyl alcohol p-coumarate were carried out with Ag2O to better understand the high frequency of β-O-4 structures in highly acylated natural lignins. The β-O-4-coupled dimers were isolated from reaction products of sinapyl p-coumarate. Further investigations are necessary to understand more about reaction mechanisms of acylated monolignols.

Report

(3 results)
  • 2016 Annual Research Report   Final Research Report ( PDF )
  • 2015 Research-status Report
  • Research Products

    (4 results)

All 2016 2015

All Presentation (4 results) (of which Int'l Joint Research: 2 results)

  • [Presentation] β‐O‐4型リグニンモデル化合物のアシドリシスによる解重合反応2016

    • Author(s)
      斉藤真冬, 岸本崇生, 濱田昌弘, 中島範行
    • Organizer
      平成28年度有機化学北陸セミナー
    • Place of Presentation
      金沢
    • Year and Date
      2016-10-07
    • Related Report
      2016 Annual Research Report
  • [Presentation] Biomimetic oxidation of sinapyl γ-acetate2016

    • Author(s)
      Takao Kishimoto, Nana Takahashi, Masahiro Hamada, Noriyuki Nakajima
    • Organizer
      The 28th International Conference on Polyphenols
    • Place of Presentation
      Vienna
    • Year and Date
      2016-07-10
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] シナピルアルコールγ‐アセテートの酸化銀による酸化カップリング2015

    • Author(s)
      岸本崇生, 高橋奈々, 濱田昌弘, 中島範行
    • Organizer
      リグニン討論会
    • Place of Presentation
      つくば
    • Year and Date
      2015-11-05
    • Related Report
      2015 Research-status Report
  • [Presentation] Effect of g-acetyl group on the oxidative coupling of sinapyl alcohol by Ag2O2015

    • Author(s)
      Takao Kishimoto, Nana Takahashi, Masahiro Hamada, Noriyuki Nakajima
    • Organizer
      International Symposium on Wood, Fiber and Pulping Chemistry (ISWFPC 2015)
    • Place of Presentation
      Vienna, Austria
    • Year and Date
      2015-09-09
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research

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Published: 2015-04-16   Modified: 2018-03-22  

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