2007
DOI: 10.1007/s11243-007-0236-0
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Insertion of ethyl diazoacetate into the platinum–carbon bond of Pt(diphosphine)(halide)(aryl) complexes. X-ray structure of the Pt{(2S,4S)-bdpp)}I(Ph) complex

Abstract: Pt(diphosphine)X(aryl) complexes [diphosphine = 1,3-bis(diphenylphosphino)propane (dppp), 2,4-bis(diphenylphos phino)pentane (bdpp); aryl = phenyl, 2-thiophenyl; X = Cl, I] have been reacted with ethyl diazoacetate in chloroform. It has been revealed by in situ n.m.r. studies that the starting compounds insert the carbene, formed from ethyl diazoacetate, into the Pt-aryl group resulting in Pt(diphosphine)X{CH(aryl)COOC 2 H 5 }. Depending on the reaction conditions (reaction time, ratio of the reactants) and th… Show more

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Cited by 6 publications
(2 citation statements)
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“…Model reactions reported for the mixed Pt-alkyl-halide [93][94][95] or Pt-aryl-halide 96 complexes provide additional hints in this direction. Reaction of [(chiral diphosphine)Pt II X(Me)] with different diazo carbonyl compounds in polar solvents generally results in formation of Pt-C insertion products [(S,S-diop)Pt II (X)(CH(Me)R)] (R = CO 2 Et, X = Cl or Br) (39, Scheme 20, X = halide, Y = Me) with rather low diastereoselectivities.…”
Section: Mechanistic Information From Synthetic Model Reactions Relev...mentioning
confidence: 93%
“…Model reactions reported for the mixed Pt-alkyl-halide [93][94][95] or Pt-aryl-halide 96 complexes provide additional hints in this direction. Reaction of [(chiral diphosphine)Pt II X(Me)] with different diazo carbonyl compounds in polar solvents generally results in formation of Pt-C insertion products [(S,S-diop)Pt II (X)(CH(Me)R)] (R = CO 2 Et, X = Cl or Br) (39, Scheme 20, X = halide, Y = Me) with rather low diastereoselectivities.…”
Section: Mechanistic Information From Synthetic Model Reactions Relev...mentioning
confidence: 93%
“…Ábra) mellett megjelennek az axiális-ekvatoriális metilcsoport elrendezõdést mutató konformerek is. A fenti difoszfin ligandummal izolált, egykristály röntgenszerkezeti vizsgálatokból kiderült, hogy többféle ligandum-környezetben -így a platina-fenil komplexek esetében is 5 -megtalálható a platina-központi fématomot, a két foszforatomot és a három szénatomot tartalmazó hattagú kelátgyûrû szék konformere is (6. Ábra).…”
Section: áBra a Heterogén éS Homogén Katalizátorok öSszehasonlításaunclassified