Die Mitarbeiter dieses Bandes

Keller, Werner

doi:10.1007/978-3-476-02973-7_25

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2017

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“…The 1 H, 6 Li HOESY spectrum [4c,26] shows only cross peaks between 6 Li and 1-H, 2-H s , and 4-H which is in line with a perpendicular orientation of the plane of the 3-membered ring and the plane of the double lithium bridge as shown in 6 (Scheme 3). Preliminary calculations with the program SCHAKAL [27] support this structure.…”

Section: Resultsmentioning

confidence: 69%

Cyclopropyllithium aggaregation and¹⁹⁹Hg NMR as a tool for exchange studies with organo‐mercury compounds

Fox

Günther

2017

J of Physical Organic Chem

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Low-temperature NMR studies revealed aggregate formation in cyclopropyllithium compounds. For C 3 H 5 Li (1), a static tetramer [ 1 J( 6 Li, 13 C) = 6.5 Hz] was found in diethylether (DEE), while in tetrahydrofuran (THF) a dimer and a fluxional tetramer [ 1 J( 6 Li, 13 C) = 9.3 and 4.7 Hz, respectively] were detected. Trans-2,3-dimethyl-1 (2) yielded in DEE/THF(1:1) diastereomeric dimers [ 1 J( 6 Li, 13 C) = 9.3 Hz] and 2,2,3,3-tetramethyl-1 (3) formed dimers in DEE and DEE/THF [ 1 J( 6 Li, 13 C) = 10.0 and 9.6 Hz, respectively]. For bis-(trans-2,3-dimethylcyclopropyl)-mercury (7), ligand exchange could be detected by the isotopic fingerprint method with 199 Hg NMR at room temperature. 199 Hg NMR in connection with specific deuteration may thus be used for ligand exchange studies in the field of organomercury compounds.

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Section: Resultsmentioning

confidence: 69%

Cyclopropyllithium aggaregation and¹⁹⁹Hg NMR as a tool for exchange studies with organo‐mercury compounds

Fox

Günther

2017

J of Physical Organic Chem

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Die Mitarbeiter dieses Bandes

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Cyclopropyllithium aggaregation and¹⁹⁹Hg NMR as a tool for exchange studies with organo‐mercury compounds

Cyclopropyllithium aggaregation and¹⁹⁹Hg NMR as a tool for exchange studies with organo‐mercury compounds

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Die Mitarbeiter dieses Bandes

Cited by 1 publication

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Cyclopropyllithium aggaregation and199Hg NMR as a tool for exchange studies with organo‐mercury compounds

Cyclopropyllithium aggaregation and199Hg NMR as a tool for exchange studies with organo‐mercury compounds

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Cyclopropyllithium aggaregation and¹⁹⁹Hg NMR as a tool for exchange studies with organo‐mercury compounds

Cyclopropyllithium aggaregation and¹⁹⁹Hg NMR as a tool for exchange studies with organo‐mercury compounds