Conclusions
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1.
The synthesis of polymethylenepolyphosphine compounds was accomplished by the condensation of the esters of trivalent phosphorus acids with the oxides of tertiary bis- and tris(chloromethyl)phosphines and the esters of bis(chloromethyl)phosphinic acid.
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2.
The metalation of pentaphenyldimethylenetriphosphine trioxide gave the potassium derivatives, the anions of which have a mesomeric structure, with a distribution of the charge between the oxygen and carbon atoms of the methine groups.
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3.
Phenyldistyrylphosphine oxide and diphenylphosphinic acid are formed when the dipotassium derivative of pentaphenyldimethylenetriphosphine trioxide is reacted with benzaldehyde.
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Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No.9, pp. 2062–2070, September, 1968.
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Medved, T.Y., Polikarpov, Y.M., Pisareva, S.A. et al. Phosphine oxides and phosphorus acids, containing several=P(O)CH2 groups in the molecule. Russ Chem Bull 17, 1959–1965 (1968). https://doi.org/10.1007/BF00904992
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DOI: https://doi.org/10.1007/BF00904992