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Synthesis and structural characterization of N,N-spiro cyclotriphosphazene derivatives with one stereogenic center

Phosphorus, Sulfur and Silicon and the Related Elements, ISSN: 1563-5325, Vol: 198, Issue: 1, Page: 15-20
2023
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Article Description

In this study, N,N-spiro cyclotriphosphazene derivatives (1a–4a) with one stereogenic center were synthesized in two steps. Firstly; mono substituted phosphazene compounds [NPClNHCH (1), NPClOCHN (2), NPClOCH-Me-2,4,6 (3), NPClOCH-Bu -2-Me-4 (4)] were prepared. Secondly, these compounds (1–4) were allowed to react with symmetrical difunctional reagent N,N′-diisopropylpropane-1,3-diamine to obtain cyclotriphosphazenes having one stereogenic center. The reaction of NPClXAr (1–4) with N,N′-diisopropylpropane-1,3-diamine was carried out in dichloromethane. Four new N,N-spiro phosphazene compounds (1a–4a) which have one stereogenic center were obtained from these reactions. The structures of these compounds were characterized by H, C and P NMR spectrometry and elemental analyses.

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