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Reaction of 3,4-Dichloro-5-methoxyfuran-2(5H)-one with 1,2-Organylbis(diphenylphosphines)

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Abstract

The reactions of 3,4-dichloro-5-methoxyfuran-2(5H)-one with 1,2-ethylenebis(diphenylphosphine) and 4,5-bis(diphenylphosphinyl)-2-phenylpyridazin-3(2H)-one involve substitution of both chlorine atoms with σ3-P atoms to form unstable diphosphonium bicyclic salts which in the course of the reaction undergo an unusual fragmentation to give finally mono- and tricyclic diphosphoniacyclohexane structures.

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Polezhaeva, N.A., Volodina, Y.M., Prosvirkin, A.V. et al. Reaction of 3,4-Dichloro-5-methoxyfuran-2(5H)-one with 1,2-Organylbis(diphenylphosphines). Russian Journal of General Chemistry 71, 1541–1544 (2001). https://doi.org/10.1023/A:1013982415819

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  • DOI: https://doi.org/10.1023/A:1013982415819

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