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有機重ヘテロ元素化合物のカメレオン特性の体系的研究

Research Project

Project/Area Number 02403009
Research Category

Grant-in-Aid for General Scientific Research (A)

Allocation TypeSingle-year Grants
Research Field 有機化学一般
Research InstitutionKyoto University

Principal Investigator

鈴木 仁美  京都大学, 理学部, 教授 (50025342)

Co-Investigator(Kenkyū-buntansha) 田中 和彦  京都大学, 理学部, 助手 (00025446)
Project Period (FY) 1991 – 1992
Project Status Completed (Fiscal Year 1992)
Budget Amount *help
¥34,500,000 (Direct Cost: ¥34,500,000)
Fiscal Year 1992: ¥3,000,000 (Direct Cost: ¥3,000,000)
Fiscal Year 1991: ¥3,000,000 (Direct Cost: ¥3,000,000)
Fiscal Year 1990: ¥28,500,000 (Direct Cost: ¥28,500,000)
Keywords有機ビスマス化合物 / キラリティー / 隣接基効果 / テルル化ナトリウム / カップリング / アジド / 還元 / トリアゾール / 亜テルル酸 / チオ-ル / 酸化 / 光学分割 / 置換基効果 / イリド / イミン / X線結晶構造解析
Research Abstract

ビスマスやテルルに代表される重いヘテロ元素は金属と非金属の接点に位置しており、これらから導かれる化合物は有機反応において、より軽い同族のヘテロ元素とは異なる特殊な挙動を示すことが多く、特に官能基選択性の高い反応を穏やかな条件下で行ないやすいという特徴を有している。本年度は配位性官能基をもつトリアリールビスムチンやビスミン誘導体、有機ビスマスジアジドおよびテルル化ナトリウムについてその化学性を検討し、多くの有意義な成果を得た。両オルト位にアルコキシ基をもつトリアリールビスムチンは異常に高い求核性を有し、α-水素をもつカルボン酸のみを室温でアルコールやアミンと速やかに縮合させるが、この特異な選択性がケテンの発生に由来することを明らかにした。また隣接位にスルホン基をもつビスムチンではスルホニル酸素-ビスマス間の相互作用による特殊な安定化と立体配置の固定化が起こり、ビスマス原子上にキラリティーの発現がみられることを発見、この原理を利用して最も重いキラル中心をもつトリアリールビスムチンを安定な分子種として合成することに成功した。この安定化要因に基いた造影剤としての可能性をもつ、非イオン系水溶性ビスムチンの合成アプローチも有望な展開を期している。極性非プロトン溶媒中でテルルアニオン種が反応条件の微妙な相違に応じてヒドリドまたは電子ドナーとして多彩な反応性を示すことに着目し、スルホニルおよびカルボニル化合物の還元または還元二量化、スルホキシドの還元開裂、ニトリルの三量化によるデアザプリンの生成などの新しいタイプの反応の開発に成功した。スルホキシドの還元開裂を利用した新規な不斉合成法を現在検討中である。

Report

(3 results)
  • 1992 Annual Research Report
  • 1991 Annual Research Report
  • 1990 Annual Research Report
  • Research Products

    (18 results)

All Other

All Publications (18 results)

  • [Publications] H.Suzuki and T.Murafuji: "A New General Method for the Synthesis of Chiral Triarylbismuthines based on the Intramolecular Coordination by a Sulfonyl Group" J.Chem.Soc.,Chem.Commun.1143-1144 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] H.Suzuki and T.Nakamura: "Sodium Telluride in N-Methyl-2-pyrrolidone.Reduction of Aromatic Carbonyl Compounds to Alcohols and Formation of Pyrro[2,3-d]pyrimidines(7-Deaza-9H-purines)from Aromatic Nitriles" J.Org.Chem.58. 241-244 (1993)

    • Related Report
      1992 Annual Research Report
  • [Publications] Y.Matano,M.Kinoshita and H.suzuki: "Synthesis and Reactions of Some Crowded Triorganylbismuthines" Bull.Chem.Soc.Jpn.65. 3504-3506 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] H.Suzuki,T.Murafuji and N.Azuma: "Synthesis and First X-ray Structure Analysis of a Stabilized Chiral Chlobismuthine.Fixation of Molecular Geometry Induced by the Intramolecular Coordination of a Sulfonyl Group" J.Chem.Soc.,Perkin Trans.1. (1993)

    • Related Report
      1992 Annual Research Report
  • [Publications] H.Suzuki,C.Nakaya and Y.Matano: "Photochemical Azido Ligand Transfer Reaction of a Triarylbismuth Diazede with Alkynes" Tetrahedron Lett.34. (1993)

    • Related Report
      1992 Annual Research Report
  • [Publications] T.Ogawa,T.Hikasa,T.Ikegami,N.Ono and H.Suzuki: "Electron-rich Triarylbismuthines as Selective Condensation Reagent under Neutral Conditions.Condensation of Aliphatic Carboxylic Acids with Amines and Alcohols" Chem.Lett.(1993)

    • Related Report
      1992 Annual Research Report
  • [Publications] H.Suzuki: "NーTosyltriarylbismuthimines.Synthesis and Reactions with Some Electrophiles" Chem.Lett.1991. 105-108 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] H.Suzuki: "Sodium Tellurite as a Mild and Selective Oxidizing Agent for Thiols" Bull.Chem.Soc.Jpn.65. 626-627 (1992)

    • Related Report
      1991 Annual Research Report
  • [Publications] H.Suzuki: "Reaction of Triarylbismuth Diazides with Aryl Isocyanates" J.Chem.Res.1992. 34-35 (1992)

    • Related Report
      1991 Annual Research Report
  • [Publications] H.Tani: "Synthesis and Attempted(4+2)Cycloaddition Reaction of 2,4,6ーTris(phenylseleno and aryltelluro)ー1,3,5ーtriazines with Diethyl Acetylenecarboxylate" Heterocycles. 1992. (1992)

    • Related Report
      1991 Annual Research Report
  • [Publications] R.Tamura: "New CーC Bond Formation Reactions Using Bis(acylmethyl)ーand Bis(alkoxycarbonylmethyl)ーtellurium Dichlorides" Organometallics. 1992. (1992)

    • Related Report
      1991 Annual Research Report
  • [Publications] H.Suzuki: "Sodium Telluride in NーMethylー2ーpyrrolidone.An Efficient Telluration System for the Synthesis of Aromatic Tellurides and Ditellurides" Synthesis. 1992. (1992)

    • Related Report
      1991 Annual Research Report
  • [Publications] H.Tani,K.Masumoto,T.Inamasu,H.Suzuki: "Tellurium Tetrachloride as a Mild and Efficient Catalyst for Dithioacetalization" Tetrahedron Letters. 53. (1991)

    • Related Report
      1990 Annual Research Report
  • [Publications] H.Suzuki,C.Nakaya,Y.Matano,T.Ogawa: "NーTosyltriarylbismuthimines.Synthesis and Reactions with Some Electrophiles" Chemistry Letters. 105-108 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] M.Yasui,T.Kikuchi,F.Iwasaki,H.Suzuki,T.Murafuji,T.Ogawa: "First Xーray Structure Determination of a Bismuthonio Ylide:4,4ーDimethy1ー2,6ーdioxoー1ーtriphenylbismuthoniocyclohexanide" Journal of Chemical Society,Perkin Trans.1. 3367-3368 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] H.Tani,T.Inamasu,R.Tamura,H.Suzuki: "Ring Expansion Reaction of 1,3ーDithiolanes and 1,3ーOxathiolanes Using Tellurium Tetrachloride" Chemistry Letters. 1323-1326 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] H.Suzuki,T.Murafuji: "Transylidation of Some Bismuthonium Ylides" Bulletin of the Chemical Society of Japan. 63. 950-952 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] H.Suzuki,T.Inamasu,T.Ogawa,H.Tani: "A Convenient Oneーpot Preparation of TeーAlkyl Tellurocarboxylates via the Successive Acylation of Telluride Anion.Application to the Synthesis of Telluroimidates" Journal of Chemical Research (S). 56-58 (1990)

    • Related Report
      1990 Annual Research Report

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Published: 1990-04-01   Modified: 2016-04-21  

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