Add time:08/27/2019         Source:sciencedirect.com

Well-defined poly(alkylene trimethylsilylphosphite)s (P + 3) were obtained for the first time via silylation of poly(oxyethylene H-phosphonate)s (P + 5) with N,O-bis(trimethylsilyl)acetamide or trimethylsilyl chloride. The reaction with both silylating agents proceeds at room temperature in quantitative conversion. It has been followed by 1H and 31P NMR spectroscopy. Poly(alkylene trimethylsilylphosphite)s represent important precursors for the preparation of polymeric aminophosphonic acids, α-hydroxyphosphonates, as well as in a Staudinger-polyphosphite reaction with azides yielding polyphosphoramides.

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