Conclusions
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1.
Dialkylphosphorous acids in the presence of Et2O·BF3 add to the 1-phenylimine of 3,5-di-tert-butyl-4-benzoquinone at the C=N bond to form dialkyl α-aminoquinolphosphonates.
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2.
Diethylphosphorous acid reacts with 3,5-di-tert-butyl-1,4-benzoquinone to give O,O-diethyl-3,5-di-tert-butyl-4-hydroxyphenyl phosphate.
Literature cited
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R. A. J. Jones and A. R. Katritzky, Angew. Chem.,2, 60 (1962).
A. N. Pudovik, I. V. Konovalova, and L. V. Dedova, Dokl. Akad. Nauk SSSR,153, 616 (1963).
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Translated from Izvestlya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 8, pp. 1909–1911, August, 1985.
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Pavlichenko, M.G., Ivanov, B.E., Pantukh, B.I. et al. Reaction of dialkylphosphorous acids with sterically hindered benzoquinonimines. Russ Chem Bull 34, 1759–1761 (1985). https://doi.org/10.1007/BF00948534
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DOI: https://doi.org/10.1007/BF00948534