Conclusions
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1.
o-Diethyl- and o-diphenylphosphinylphenol and o-(2-diethylphosphinylethyl)phenol are prepared by dealkylating the corresponding o-phosphorus-substituted anisoles with hydrobromic acid.
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2.
o-Diethyl- and o-diphenylphosphinylmethylphenol are prepared by Arbuzov rearrangement of the corresponding salicyl phosphinite esters.
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3.
o-(2-Diphenylphosphinylethyl)phenol is prepared by cleavage of coumaran with sodium diphenylphosphide followed by oxidation of the resulting phosphinophenol.
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Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 2, pp. 432–435, February, 1979.
The authors wish to thank V. A. Svoren' for recording the PMR spectra.
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Bondarenko, N.A., Tsvetkov, E.N., Matrosov, E.I. et al. Synthesis of o-substituted phosphinyl-, phosphinylmethyl-and phosphinylethylphenols. Russ Chem Bull 28, 399–403 (1979). https://doi.org/10.1007/BF00925894
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DOI: https://doi.org/10.1007/BF00925894