Preparation and properties of the .SIGMA.-picolyl complexes of palladium(II), [{PdCl(C5H4N-2-CH2)PPh3-nMen}2] (n=0, 1, and 2).

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概要

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• The oxidative addition of 2-(chloromethyl)pyridine to tetrakis(triphenylphosphine)palladium(0) in toluene at 100 °C gave [{PdCl(C<SUB>5</SUB>H<SUB>4</SUB>N-2-CH<SUB>2</SUB>)PPh<SUB>3</SUB>}<SUB>2</SUB>] (<B>1a</B>), which was characterized by analytical, molecular-weight, and IR data as well as <SUP>1</SUP>H, <SUP>31</SUP>P, and <SUP>13</SUP>C NMR spectroscopy. The chloride ligand was readily replaced by other halides, whereas tertiary phosphines such as diphenylmethyl-, phenyldimethyl-, and triethylphosphines cleaved the bridge after substitution of triphenylphosphine to result in the monomeric <I>trans</I>-[PdCl(C<SUB>5</SUB>H<SUB>4</SUB>N-2-CH<SUB>2</SUB>)(PR<SUB>3</SUB>)<SUB>2</SUB>] complexes. Reactions of <B>1a</B> with carbon monoxide and other reagents are also reported. The corresponding 3-picolyl complex [{PdCl(C<SUB>5</SUB>H<SUB>4</SUB>N-3-CH<SUB>2</SUB>)PPh<SUB>3</SUB>}<I><SUB>n</SUB></I>] was also prepared, but could not be well characterized because of lower stability and solubility.

• 公益社団法人 日本化学会の論文

著者

• Isobe Kiyoshi

  Department Of Agricultural Chemistry Faculty Of Agriculture Shizuoka University

• Nakamura Yukio

  Department Of Biotechnology Faculty Of Agriculture Gifu University

• Kawaguchi Shinichi

  School of Medicine(Premedical Building), Kinki University

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