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分子の動的性質の設計

Research Project

Project/Area Number 02230108
Research Category

Grant-in-Aid for Scientific Research on Priority Areas

Allocation TypeSingle-year Grants
Research InstitutionOkayama University of Science

Principal Investigator

大木 道則  岡山理科大学, 理学部, 教授 (40011407)

Co-Investigator(Kenkyū-buntansha) 山本 学  東京大学, 理学部, 助手 (70011632)
深沢 義正  広島大学, 理学部, 教授 (50004502)
竹内 敬人  東京大学, 教養学部, 教授 (80012384)
兼松 顯  九州大学, 薬学部, 教授 (70023041)
石津 和彦  愛媛大学, 理学部, 教授 (60036184)
Project Period (FY) 1990
Project Status Completed (Fiscal Year 1990)
Budget Amount *help
¥31,500,000 (Direct Cost: ¥31,500,000)
Fiscal Year 1990: ¥31,500,000 (Direct Cost: ¥31,500,000)
Keywords溶媒効果 / 結合解離 / アレニルエ-テル / アレニルスルホン / 鉄TPP錯体 / 有機ゲルマニウム化合物 / シクロファン / 分子ギア
Research Abstract

溶媒分子の大きさが分子の解離速度に及ぼす影響を調べるため、ボラン・アミン錯体およびαークロロベンジル=エチル=エ-テルにつき、嵩高い分子の溶媒中での解離速度を求めた。前者は解離が速くなり、後者は遅くなった。このことは溶媒和に対する立体効果で説明が可能である。アレニルスルホンの分子内環状反応における構造・活性相関を調べた結果、基質のジエン部位がSーシス配座を取りやすい場合には[4+2]型付加体が、一方、基質の2位に置換基があってジエン部位の配座がSートランスを取りやすい場合には[2+2]付加体が優先することを明らかにした。ヘム酵素の酸素活性化機構を明らかにするため、モデル物質を作って過酸化物錯体生成の機構に関する情報を得、また膜輸送過程の研究の一環として銅(II)錯体の構造と輸送速度の相関について知見を得ることができた。ゲルマニウム原子を構成員とする種々の環状化合物を成合し、そのスペクトルおよび分子力学による計算の結果を元にして、その安定配座を求めた。ゲルマシクロペンタンは対称ねじれ構造が安定であった。これは、対応する炭素骨格とは全く異なる結果であり、炭素・ゲルマニウム結合が長いための効果と考えられる。架橋鎖にヘテロ原子を含む[m.m]シクロファンや芳香族部分にヘテロ原子を含むシクロファンを合成し、環電流効果を用いる配座決定法によってこれらの構造を求め、安定な配座を決定した。8ーハロー1,4ージメチルー9ー(2ーメチルベンジル)トリプチセンにおいて2種の安定な回転異性体を単離することに成功した。このうち一方の異性体は、加熱することにより、融解することなく、結晶中でもう一方の異性体に異性化することが分かった。結晶のなかで分子がこのような大きな運動をすることは、大変興味深いことである。

Report

(1 results)
  • 1990 Annual Research Report
  • Research Products

    (30 results)

All Other

All Publications (30 results)

  • [Publications] S.Toyota: "Dynamic NMR as a Nondestructive Method for the Determination of Rates of Dissociation.XVII.Dissociation of the NーB Bond in the Coordinated Form of 2ー[2ー(Dimethylaminomethyl)phenyl]ー4,4ーdiphenyl]ー1,3,2ーdioxaborolane and Related Compounds" Bull.Chem.Soc.Jpn.63. 1168-1173 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] Y.Tamura: "Molecular Structure of 9ーChloromethylー1,4ーdimethoxytriptycene and Its Implications for the Presence of 0...CH_2Cl Interactions" Bull.Chem.Soc.Jpn.63. 2555-2563 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] G.Yamamoto: "Restricted Rotation Involving the Tetra edral Carbon.LX.periーSubstituent Effect on the Rotational Barrier of the ^h9ーMethyl Group in Several Triptycene Derivatives" Bull.Chem.Soc.Jpn.63. 3550-3559 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] M.O^^ーki: "Methyl Group Can Stabilize Carbocations" Chem.Lett.2209-2212 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] S.Toyota: "Dynamic NMR as a Nondestructive Method for the Determination of Rates of Dissociation.XVIII.Factors Affecting the Rates of Dissociation of NーB Bond in the Coordinated Form of 9ー[2ー(Dialkylaminomethyl)phenyl]ー9ーborabicyclo[3.3.1]nonane" Bull.Chem.Soc.Jpn.

    • Related Report
      1990 Annual Research Report
  • [Publications] S.toyota: "Dynamic NMRoas a Nondestructive Method for the Determination of Rates of Dissociation.XIX.Sulfur Inversion in 9ー[2ー(Ethylthiomethyl)phenyl]ー9ーborabicycloー[3.3.1]nonane Proceeds via Dissociative Mechanism" Bill.Chem.Soc.Jpn.

    • Related Report
      1990 Annual Research Report
  • [Publications] K.Ishizu: "Important Role of Fe(III)TPPーOxygenーSkatole Ternary Complex in Triptophan Dioxygenase Model Reaction System" Inorganica Chim.Acta. 172. 83-91 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] K.Ishizu: "Generation of Fe(III)OEPーHydrogen Peroxide Complex by Reduction of Fe(II)OEPーOxygen Complex with Ascorbic Acid Sodium Salt" J.Chem.Soc.,Chem.Commun.144-145 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] K.Ishizu: "Coordination Structure and ChemicalReactivity of HemoproteinーButyl Peroxide Complex Studied by ESR and Optical Spectroscopy" Biochem.Biophys.Chem.Res.

    • Related Report
      1990 Annual Research Report
  • [Publications] 石津 和彦: "界面活性アザクラウンエ-テルで修飾されたポソ-ムの銅(II)イオン取り込みの動的過程" 日本化学会誌.

    • Related Report
      1990 Annual Research Report
  • [Publications] K.Hayakawa: "Competitive Intramolecular [4+2] Cycloaddition and Tandem [2+2] Cycloaddition/[3,3]ーSigmatropic Rearrangement Sequence of allenylー3ーvinylー2ーcyclohexenyl Ethers: Evidence for Switching of the Reaction pathway by the Substituent Ethrs" J.Am.Chem.Soc.111. 5312-5320 (1989)

    • Related Report
      1990 Annual Research Report
  • [Publications] M.Aso: "Furannulation Strategy,An Efficient Synthesis of Fused 3ーMethylfurans" Heterocycles. 31. 1003-1006 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] Y.Yamaguchi: "4,5,6,7ーTetrahydroisobenzofuranー5ーone as a Versatile Building Block Leading to the Basic Skeleton of Naturally Occurring Fused Furans" Heterocycles. 30. 223-226 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] S.Nagashima: "A Synthesis of an Optically Active Forskolin Intermediate via Allenyl Ether Intramolecular Cycloaddition Strategy" Tetrahedron:Asymmetry. 1. 743-749 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] K.Kanematsu: "Competitive Intramolecular [4+2] Cycloaddition and [2+2] Cycloaddition of Sulfonylallene" Tetrahedron Lett.(1991)

    • Related Report
      1990 Annual Research Report
  • [Publications] K.Kanematsu: "Tatal Syntheses of Euryfuran and Xestoquinone Demonstrating an Efficient Furan Ring Transfer Reaction Strategy for the Preparation of Functionallized Polycyclic Furan Ring Systems" J.Am.Chem.Soc.

    • Related Report
      1990 Annual Research Report
  • [Publications] Y.Takeuchi: "NMR Spectra of Organogermanium Compounds.IX.NMR Spectra and Molecular Mechanics Calculations of 1ーtーButylgermacyclohexanes" Bull.Chem.Soc.Jpn.63. 708-715 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] Y.Takeuchi: "Stereochemical Studies of Germacyclohexanes" Main Group Metal Chemistry. 13. 323-354 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] K.Tanaka: "Mass Spectroscopy of Organogermanium Compounds.Fragmentation Process of 1ーGermacyclohexane and Their Methyl Derivatives" Heterocycles. 30. 949-956 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] Y.Takeuchi: "NMR Spectra of Organogermanium Compounds.X.Cー13 and Geー73 NMR Spectra and Molecular Mechanics Calculations of Germacyclopentanes and Germacyclopentenes" Bull.Chem.Soc.Jpn.64. 91-98 (1991)

    • Related Report
      1990 Annual Research Report
  • [Publications] Y.Fukazawa: "Synthesis and Structure of 1,11ーoーBenzeno[2]orthocyclo[2](4,5)troponophane" Tetrahedron Lett.31. 1309-1312 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] Y.Fukazawa: "Solid State Structure of a Large Ring Compound in Solution.Structure of Tetramethyl[4.4]paracyclophanedione" Tetrahedron Lett.31. 1309-1312 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] Y.Fukazawa: "Novel AcidーCatalysed Rearrangement of 4ーSubstituted Pentacycylo[5.3.0^<2.5>.O^<3.1>.0^<4.8>]decanー6ーones" J.Chem.Soc.Perkin 2. 1735-1738 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] Y.Fukazawa: "Structure of 2,11ーDioxa[3.3]orthocyclophane" Chem.Lett.37-40 (1991)

    • Related Report
      1990 Annual Research Report
  • [Publications] Y.Fukazawa: "Asymmetric Synthesis of 5ー and 6ーMembered Lactones from Cyclic Substrate Bearing a C_2ーChiral Auxiliary" J.Org.Chem.56. (1991)

    • Related Report
      1990 Annual Research Report
  • [Publications] T.Mitsuhashi: "Analysis of Solvent Effects on the Rates of the Cope Rearrangement: Evidence for Its HydrogenーBondーInsusceptible Nature" Bull.Chem.Soc.Jpn.63. 643-645 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] G.Yamamoto: "Use of Benzene Rings as Parts of Rigid Rotors: Dynamic Stereochemistry of 9ー(ArylーX)triptycene Derivatives" Pure Appl.Chem.62. 569-574 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] M.A.Cremonini: "Conformation and Stereodynamics of a Highly Hindered Ethane,1,2ーBis(2,4,6ーtriーtertーbutylphenyl)ethane,and of the Corresponding Ethyl Radical" J.Am.Chem.Soc.112. 2915-2921 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] G.Yamamoto: "Dynamic Stereochemistry of Molecular Gears,9ーBenzyltriptycene and 9ーPhenoxytriptycene,Studied by 13ーC Dynamic NMR Spectroscopy and Molecular Mechanics Calculations" Tetrahedron. 46. 2761-2772 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] G.Yamamoto: "Atropisomerism in a Molecular Gear,8ーBromoー1,4ーdimethylー9ー(2ーmethylbenzyl)ーtriptycene" Chem.Lett.1373-1376 (1990)

    • Related Report
      1990 Annual Research Report

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

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