Coupling reactions of terminal acetylenes with ruthenium complexes containing the ortho-metalated ligand 2,6-(PPh2CH2)2C6H3

Hon Man Lee, Junzhi Yao, Guochen Jia

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Abstract

Reactions Of RuCl(PPh3)(PCP) (PCP = 2,6-(PPh2CHa)2C6H3) with PhC≡CH and HC≡CC-(OH)Ph2 gave the unusual coupling products RuCl(PPh3)(η4-PhCH=C-2,6-(PPh2CH 2)2C6H3) and RuCl(PPh3)(η4-Ph2C(OH)CH=C-2,6-(PPh 2CH2)2C6H3), respectively. Dehydration was observed in the coupling reactions Of RuCl(PPh3)(PCP) with HC=CC(OH)PhMe and HC≡C-cyclo-C6H10(OH). Thus, the coupling products RuCl(PPh3)(η4-CH2=CPhCH=C-2,6-(PPh 2-CH2)2C6H3) and RuCl(PPh3)(η4-cyclo-C6H 9-CH=C-2,6-(PPh2CH2)2C 6H3) were obtained from the reactions of RuCl(PPh3(PCP) with HC=CC(OH)PhMe and HC=C-cyclo-C6H10(OH), respectively. Treatment of [Ru(PMe3)2(PCP)]BF4 with PhC=CH produced [Ru(PMe3)24-PhCH=C-2)6-(PPh 2CH2)2C6H3)]BF 4.

Original languageEnglish
Pages (from-to)3927-3933
Number of pages7
JournalOrganometallics
Volume16
Issue number18
Publication statusPublished - 1997 Sep 2

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All Science Journal Classification (ASJC) codes

  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry

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