Reactions of methyltris(triarylphosphine)cobalt. II. Rearrangement of triarylphosphine and oxidative additions of aryl halides

Sophia Nussbaum; Michael Michman

doi:10.1016/S0022-328X(00)83944-3

Reactions of methyltris(triarylphosphine)cobalt. II. Rearrangement of triarylphosphine and oxidative additions of aryl halides

Sophia Nussbaum^*
, Michael Michman

^*Corresponding author for this work

Institute of Chemistry

Research output: Contribution to journal › Article › peer-review

10 Scopus citations

Abstract

Solutions of [(C₆H₅)₃P]₃CoCH₃ (I) in C₆H₅Cl yield biphenyl, triphenylphosphine, methyldiphenylphosphine and diphenylphosphine. In 4-ClC₆H₄CH₃, 4-methylbiphenyl and 4,4′-bitolyl form as well. Solutions of I in C₆H₆, C₆D₆, C₆H₅CH₃, C₆H₅Br yield only triphenylphosphine and biphenyl, while in 4-FC₆H₄I 4,4′-difluorobiphenyl is formed but no biphenyl. The cobalt compound is recovered as (Ph₃P)_nCoX or as CoX₂ (XCl, Br, I, n = 3 or 2) from reactions with arylhalides. The results are rationalized in terms of the very strong tendency for I to undergo oxidative addition reactions.

Original language	English
Pages (from-to)	555-559
Number of pages	5
Journal	Journal of Organometallic Chemistry
Volume	182
Issue number	4
DOIs	https://doi.org/10.1016/S0022-328X(00)83944-3
State	Published - 18 Dec 1979

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title = "Reactions of methyltris(triarylphosphine)cobalt. II. Rearrangement of triarylphosphine and oxidative additions of aryl halides",

abstract = "Solutions of [(C6H5)3P]3CoCH3 (I) in C6H5Cl yield biphenyl, triphenylphosphine, methyldiphenylphosphine and diphenylphosphine. In 4-ClC6H4CH3, 4-methylbiphenyl and 4,4′-bitolyl form as well. Solutions of I in C6H6, C6D6, C6H5CH3, C6H5Br yield only triphenylphosphine and biphenyl, while in 4-FC6H4I 4,4′-difluorobiphenyl is formed but no biphenyl. The cobalt compound is recovered as (Ph3P)nCoX or as CoX2 (XCl, Br, I, n = 3 or 2) from reactions with arylhalides. The results are rationalized in terms of the very strong tendency for I to undergo oxidative addition reactions.",

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AU - Nussbaum, Sophia

AU - Michman, Michael

PY - 1979/12/18

Y1 - 1979/12/18

N2 - Solutions of [(C6H5)3P]3CoCH3 (I) in C6H5Cl yield biphenyl, triphenylphosphine, methyldiphenylphosphine and diphenylphosphine. In 4-ClC6H4CH3, 4-methylbiphenyl and 4,4′-bitolyl form as well. Solutions of I in C6H6, C6D6, C6H5CH3, C6H5Br yield only triphenylphosphine and biphenyl, while in 4-FC6H4I 4,4′-difluorobiphenyl is formed but no biphenyl. The cobalt compound is recovered as (Ph3P)nCoX or as CoX2 (XCl, Br, I, n = 3 or 2) from reactions with arylhalides. The results are rationalized in terms of the very strong tendency for I to undergo oxidative addition reactions.

AB - Solutions of [(C6H5)3P]3CoCH3 (I) in C6H5Cl yield biphenyl, triphenylphosphine, methyldiphenylphosphine and diphenylphosphine. In 4-ClC6H4CH3, 4-methylbiphenyl and 4,4′-bitolyl form as well. Solutions of I in C6H6, C6D6, C6H5CH3, C6H5Br yield only triphenylphosphine and biphenyl, while in 4-FC6H4I 4,4′-difluorobiphenyl is formed but no biphenyl. The cobalt compound is recovered as (Ph3P)nCoX or as CoX2 (XCl, Br, I, n = 3 or 2) from reactions with arylhalides. The results are rationalized in terms of the very strong tendency for I to undergo oxidative addition reactions.

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Reactions of methyltris(triarylphosphine)cobalt. II. Rearrangement of triarylphosphine and oxidative additions of aryl halides

Abstract

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