Conclusions
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1.
The reaction of bis(hydroxymethyl)phenylphosphine with dimethylformamide dimethylacetal gave 2-dimethylamino-5-phenyl-1,3,5-dioxaphosphorinane as the major product and dimethylaminomethylenephenylphosphine. The reaction of phenylphosphine and bis(dimethylamino)methoxymethane is indicated for the preparation of dimethylaminomethylenephenylphosphine.
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2.
Dimethylaminomethylenephenylphosphine adds tetrachlorocyclopentadienone dimethylacetal at room temperature to give 1,4,5,6-tetrachloro-7,7-dimethoxy-3-dimethylamino-2-phenyl-2-phospha-5-norbornene in quantitative yield.
Literature cited
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Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 9, pp. 2116–2118, September, 1987.
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Ionkin, A.S., Erastov, O.A. & Arbuzov, B.A. Reaction of bis(hydroxymethyl)phenylphosphine with dimethylformamide dimethylacetal. Russ Chem Bull 36, 1967–1969 (1987). https://doi.org/10.1007/BF00958361
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DOI: https://doi.org/10.1007/BF00958361