Conclusions
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1.
Compounds containing a pseudochiral phosphorus atom have been prepared (bis(ethylethoxythiophosphoryl) phenylphosphinite, bis(ethylethoxythiophosphoryl) methylphosphonate, and bis(ethylethoxythiophosphoryl) phenylthiophosphonate). Their optically active stereoisomers have been obtained.
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2.
31P-{1H} NMR spectroscopy has been used to show that the compounds obtained from racemic O-ethylethylthiophosphonic acid are a mixture of the three diastereoisomers (two meso-forms and the racemic d,ι form in the statistical ratio, 1∶2∶1.
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Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 2, pp. 412–415, February, 1988.
The authors thank I. A. Nuretidinov and A. V. Il'yasov for collaboration in these studies, and T. V. Kornilova for assistance in the synthesis of the compounds studied.
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Dimukhametov, M.N., Ismaev, I.É. Synthesis and stereochemistry of compounds carrying two chiral alkylalkoxythiophosphoryl substituents on the phosphorus atom. Russ Chem Bull 37, 331–333 (1988). https://doi.org/10.1007/BF00957438
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DOI: https://doi.org/10.1007/BF00957438