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Synthesis of Chiral Phosphazene Bases

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Chemistry of Heterocyclic Compounds Aims and scope

Air-stable and crystalline tetraaminophosphonium tetrafluoroborates possessing chiral, enantiomerically pure 1,2-diamine moiety have been synthesized by a three-step sequential one-pot approach. The tetrafluoroborate salts can be purified by recrystallization or chromatography and subsequently converted to the phosphazene bases by treatment with t-BuOK. Basicity values in tetrahydrofuran have been measured for the obtained phosphazene bases by means of spectrophotometric titration.

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Authors thank Dr. S. Belyakov (Latvian Institute of Organic Synthesis) for X-ray crystallographic analysis.

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Authors and Affiliations

  1. Latvian Institute of Organic Synthesis, 21 Aizkraukles St., Riga, LV-1006, Latvia

    Martins Priede, Elina Priede & Edgars Suna

  2. Institute of Chemistry, University of Tartu, 14a Ravila St., Tartu, 50411, Estonia

    Jaan Saame & Ivo Leito

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  1. Martins Priede
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  2. Elina Priede
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  3. Jaan Saame
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  4. Ivo Leito
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  5. Edgars Suna
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Correspondence to Edgars Suna.

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The Supplementary information file containing results of X-ray crystallographic analysis is available at http://link.springer.com/journal/10593.

Published in Khimiya Geterotsiklicheskikh Soedinenii, 2016, 52(8), 541–545

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Priede, M., Priede, E., Saame, J. et al. Synthesis of Chiral Phosphazene Bases. Chem Heterocycl Comp 52, 541–545 (2016). https://doi.org/10.1007/s10593-016-1927-2

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