Ylide-metal complexes. III. Preparation and properties of gold(I) complexes of alkylidenetriphenylphosphoranes and -arsoranes.

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概要

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• Ylide-gold complexes of the type triphenylphosphine(triphenylphosphonium alkylide)gold(I) chloride, (<U>Remark: Graphics omitted.</U>), and bis(triphenylphosphonium alkylide)gold(I) chloride, (<U>Remark: Graphics omitted.</U>), have been obtained from alkylidene triphenylphosphoranes, Ph<SUB>3</SUB>P=CH–R (R: H, CH<SUB>3</SUB>, CH(CH<SUB>3</SUB>)<SUB>2</SUB>), and (triphenylphosphine)gold(I) chloride, Ph<SUB>3</SUB>PAuCl. Bis(triphenylarsonium methylide)gold(I) chloride, [Ph<SUB>3</SUB>AsCH<SUB>2</SUB>–Au–CH<SUB>2</SUB>AsPh<SUB>3</SUB>]Cl, has been synthesized from methylenetriphenylarsorane and Ph<SUB>3</SUB>PAuCl. In these organogold complexes, the ylides are attached to the gold atom through the carbanionic donor atom. The <SUP>1</SUP>H-NMR spectra of [Ph<SUB>3</SUB>PCH<SUB>2</SUB>–Au–PPh<SUB>3</SUB>]Cl indicates an intermolecular exchange process in the temperature range +25–−50 °C.

• 公益社団法人 日本化学会の論文

著者

• Yamamoto Yoshihisa

  Faculty Of Engineering Kyushu University

• Kanda Zenjiro

  Faculty of Arts and Sciences, Kochi University

• Kanda Zenjiro

  Faculty of Pharmaceutical Science, Higashi Nippon Gakuen University

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