PREPARATION OF SYNERGETIC HYPERVALENT ELEMENT COMPOUNDS BASED ON THE CONTROL OF COORDINATION SPHERE

基于配位球控制的协同超价元素化合物的制备

• 批准号: 18064013
• 负责人: YAMAMOTO Yohsuke
• 金额: $ 21.89万
• 依托单位: Hiroshima University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research on Priority Areas
• 财政年份: 2006
• 资助国家: 日本
• 起止时间: 2006 至 2009
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-18064013/
• 关键词: 超原子価; 5配位; アンチモン; 異性化機構; turnstile rotation; 理論計算; 異性化; 包接化合物; リチウムカチオン; スフェランド; 合成; 6配位; 炭素; X線解析

1. We synthesized the first hypervalent hexacoordinate carbon compound (12-C-6) and the structure was confirmed by detailed X-ray analysis.2. Synthetic methods for Cram's spehrand were improved and new derivatives bearing t-Bu and cyclohexyl substitutents were prepared in order to get more soluble compounds.3. By use of the newly developed ligand, two stereoisomers of pentacoordinate antimony compounds (stiboranes) were synthesized, isolated, and characterized by X-ray analysis. Kinetic measurements were performed. Based on the calculation of the mechanism, we can conclude that the isomerization proceed by way of the turnstile rotation.

1.合成了第一个超价六配位碳化合物（12-C-6），并通过详细的X射线衍射分析对其结构进行了确认.改进了Cram's spehrand的合成方法，合成了含叔丁基和环己基取代基的新衍生物，以得到可溶性更好的化合物.利用新开发的配体，合成了两种五配位锑化合物（锑硼烷）的立体异构体，并对其进行了分离和X-射线分析。进行动力学测量。通过对反应机理的计算，得出异构化反应是以旋转门式旋转的方式进行的。

项目成果

Synthesis and Structure of a Hexacoordinate Carbon Compound

六配位碳化合物的合成与结构

• 发表时间: 2008
• 期刊: J. Am. Chem. Soc 130(22)
• 作者: Yamaguchi;T.; Yamamoto;Y.; Kinoshita;D.; Akiba;K-y.; Zhang;Y.; Reed;C.A.; Hashizume;D.; Iwasaki;F
• 通讯作者: F

Some Reactions of O-Equatorial Spirpphosphoranes Bearing the Bidentae Iigand Based on Decafluoro-3-phenyl-3-pentanol

基于十氟-3-苯基-3-戊醇的带有Bidentae配体的O-赤道螺正膦的一些反应

• 发表时间: 2007
• 期刊: Heterocycles 73
• 作者: Yasuhiro Kohsaka;Gen-ichi Konishi;Toshikazu Takata;仲嶋 一範;Xin-Dong Jiang
• 通讯作者: Xin-Dong Jiang

Synthesis and Structure of a Carbon Ckjmpound Bearing a Sterically Rigid 1,8-Dioxythioxaiithylium (or Thioxanthene) Skeleton

具有空间刚性 1,8-二氧硫代乙鎓（或噻吨）骨架的碳化合物的合成和结构

• 发表时间: 2007
• 期刊: Chem. Lett. 36
• 作者: Y.Sunada;Y.Fujimura;H.Nagashima;Torahiko Yamaguchi
• 通讯作者: Torahiko Yamaguchi

Application of a chiral copper-1,1-bis{2-[(4S)-tert-butyl-oxazolinyl]}cyclopropane catalyst for asymmetric cyclopropanation of styrene

• DOI: 10.1016/j.tetlet.2005.11.086
• 发表时间: 2006-01-23
• 期刊: TETRAHEDRON LETTERS
• 影响因子: 1.8
• 作者: Itagaki, M;Yamamoto, Y
• 通讯作者: Yamamoto, Y

Synthesis and Application of a Bidentate Ligand based on Decefluoro-3-phenyl-3-pentanol : Steric Effect of Pentafluoroethyl Groups on the Stereomutation of O-Equatorial C-Apical Spirophosphoranes

基于十氟-3-苯基-3-戊醇的双齿配体的合成与应用：五氟乙基对O-赤道C-顶端螺正膦立体突变的空间效应

• 发表时间: 2007
• 期刊: Chem. Asian. J. 2
• 作者: X.Jiang;K.Kakuda;S.Matsukawa;H.Yamamichi;S.Kojima;Y.Yamamoto
• 通讯作者: Y.Yamamoto