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1995 Fiscal Year Final Research Report Summary

Molecular Design and Development of New Synthetic Methods of Novel Thio-, Seleno-, Tellurocarboxylic Acid Derivatives

Research Project

Project/Area Number 06453127
Research Category

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

Allocation TypeSingle-year Grants
Research Field 有機工業化学
Research InstitutionGIFU UNIVERSITY

Principal Investigator

KATO Shinzi  Gifu University, Department of Chemistry, Professor, 工学部, 教授 (40021589)

Co-Investigator(Kenkyū-buntansha) KANDA Takehiro  Gifu University, Department of Chemistry, Research Associate, 工学部, 助手 (30234157)
MURAI Toshiaki  Gifu University, Department of Chemistry, Associate, Professor, 工学部, 助教授 (70166239)
Project Period (FY) 1994 – 1995
KeywordsCalcogenocarboxylic acids / Tellurocarboxylic acids / Metal salts / Selenoarsenation / Aromatic selenothioic acid S-esters
Research Abstract

In recent years, much attention has been paid to a series of chalcogenocarboxylic acid derivatives because of their biological activity such as brain blocking agent as well as of industrial materials such as photo-sensitizing agents and additives to lubricants. However, in spite of these useful properties, only a limited number of fundamental data have been studied. Accordingly, the prime objective of the present research was to disclose their basic features from the synthetic and structural point of view. The results obtained through the present research are as follows.
1.X-ray molecular structure analyzes of thio-, seleno-and tellurocarboxylic acid lithium, rubidium, and cesium salts were successful. The results have shown they adopt the structures where the metal resides on sulfur, selenium, or tellurium atom in a solid state.
2.Tellurocarboxylic acid was generated at low temperature from the corresponding Cesium salts. The acids exist predominantly as a telluro form in nonpolar solvents, whereas the telluoxo form was a predominant species in polar solvents. The similar trends were also observed for thio- and selenocarboxylic acids
3.Se-Arsanyl selenocarboxylates were found to undergo the addition reaction to conjugated terminal acetylenes with high regio- and stereoselectivity.
4.The stability trends of a series of selenothioic acid S-esters have been disclosed.

  • Research Products

    (12 results)

All Other

All Publications (12 results)

  • [Publications] 加藤晋二: "Synthesis of Rubidium and Cesium Tellurocarboxylates and X-ray Strucural Analysis of Heavy Alkai Metal Monochalcogenocarboxylates" Bull.Chem.Soc.Jpn.68. 3507-3517 (1995)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 加藤晋二: "Thion (RCSOH),Selenon (RCSeOH) and Telluron Acids (RCTeOH) as Predominant Species" J.Am.Chem.Soc.(in press). (1996)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 加藤晋二: "Preparation of Bis (phosphine) -bis (selenocarboxylato) -nickel (II),palldium (II) and platinum (II) complexes and their X-ray Crystal Struccture Analysis" J.Chem.Soc.,Dalton Trans.I. (in press). (1996)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 村井利昭: "Selective Allylations of Selenothioic Acid S-Alkyl Esters with Allylic Bromides" Chem.Lett.,. 1057-1058 (1995)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 村井利昭: "Reaction of Selenoic Acid O-Methyl Esters with Aluminum Thiolates Leading to Aromatic Selenothioic Acid S-Alkyl Esters and Their Characterization" J.Org.Chem.,. 60. 2942-2945 (1995)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 神田貴宏: "Selenoarsenation of Alkynes" Organometallics. 14. 4975-4976 (1995)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Y.Kawahara, S.Kato, T.Kanda, T.Murai, E.Ebihara: "Synthesis of Rubidium and Cesium Tellurocarboxylates and X-ray Strucural Analysis of Heavy Alkai Metal Monochalcogenocarboxylates" Bull. Chem. Soc. Jpn.68. 3507-3517 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] S.Kato, Y.Kawahara, H.Kageyama, R.Yamada, O.Niyomura, T.Murai, T.Kanda: "Thion (RCSOH), Selenon (RCSeOH) and Telluron Acids (RCTeOH) as Predominant Species" J.Am.Chem.(in press). (1996)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Y.Kawahara, S.Kato, T.Kanda, T.Murai, K.Miki: "Preparation of Bis (phosphine) bis (selenocarboxylato) -nickel (II), palldium (II) and platinum (II) complexes and their X-ray Crystal Structure Analysis" J.Chem. Soc., Dalton Trans. I. (in press). (1996)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T.Murai, H.Takada, T.Kanda, S.Kato: "Selective Allylations of Selenothioic Acid S-Alkyl Esters with Allylic Bromides" hem. Lett.1057-1058 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T.Murai, Y.Ogino, T.Mizutani, T.Kanda, S.Kato: "Reaction of Selenoic Acid O-Methyl Esters with Aluminum Thiolates Leading to Aromatic Selenothioic Acid S-Alkyl Esters and Their Characterization" J.Org. Chem.60. 2942-2945 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T.Kanda, T.Koike, S.Kagohashi, K.Mizoguchi, T.Murai, S.Kato: "Selenoarscnation of Alkynes" Organometallics. 14. 4975-4976 (1995)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 1997-03-04  

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