87428-62-4Relevant academic research and scientific papers
Bis-Phosphino-Derivatives of Cyclooctatetraene
Benn, Reinhard,Mynott, Richard,Richter, Wolf Juergen
, p. 79 - 80 (2007/10/02)
Magnesium-COT reacts with diorganochlorophosphines to yield 1,2-diphosphino-substituted cyclooctatrienes.While the methyl compound leads to ring-concentration, larger substituents at phosphorus give rise to 1,8-diphosphino-octatetraenes (E,Z,Z,E) via retro-electrocyclization.The compounds are fully characterized by NMR. - Keywords: Magnesium-COT, Diphosphines, NMR Spectra
1,8-BIS--1,3,5,7-OCTATETRAENE DURCH UMSETZUNG VON CYCLOOCTATETRAEN-DILITHIUM MIT R2P-Cl
Maerkl, G.,Alig, B.,Eckl, E.
, p. 1955 - 1958 (2007/10/02)
By reaction of cyclooctatetraene-dilithium with R2P-Cl the expected 1,3,5-cyclooctatriene-7,8-diphosphanes (6) undergo spontaneously a conrotatory ring-opening reaction to give the title compounds.
