Highly Efficient Darzens Reactions Mediated by Phosphazene Bases under Mild Conditions
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DOI: 10.1002/open.202200179
Abstract: Abstract The highly basic and poorly nucleophilic phosphazene base P1‐t‐Bu promotes the Darzens condensation of α‐halo esters with aromatic aldehydes affording α,β‐epoxy esters in nearly quantitative yields under mild conditions and in short reaction times.… read more here.
Keywords: darzens reactions; efficient darzens; highly efficient; reactions mediated ... See more keywords
Synthesis and application of additives based on trifluoroethoxy-cyclo-phosphazene into polymer nanofibers
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DOI: 10.1016/j.tet.2020.130999
Abstract: Abstract This paper is focused on the synthesis and application of phosphazene derivatives, hexakis(2,2,2–trifluoroethoxy)-cyclo-triphosphazene and tetrakis(2,2,2-trifluoroethoxy)-diamino-cyclo-triphosphazene. These compounds were used as additives into some common polymers. As the synthesized compounds themselves show enhanced hydrophobicity, the… read more here.
Keywords: application additives; phosphazene; cyclo; synthesis application ... See more keywords
Synthesis of Phosphazene-Containing, Bisphenol A-Based Benzoxazines and Properties of Corresponding Polybenzoxazines
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DOI: 10.3390/polym12061225
Abstract: With the aim of obtaining halogen-free polybenzoxazazines with reduced flammability, phosphazene-containing benzoxazines (PhBZ) were synthesized in a two-stage method. In the first stage of the reaction of hexachlorocycotriphosphazene with bisphenol A at molar ratios of… read more here.
Keywords: bisphenol based; synthesis phosphazene; phosphazene; phbz ... See more keywords