Facile syntheses of phosphorus containing multisite receptors

Thiophosphate/Phosphonate‐Containing Cross‐Linked PEGs and Their Use for the Stabilization of Silver Nanoparticles

“…The two‐step procedure described in Fig. involves first the condensation of diamino‐PEG (MW = 1500 g⋅mol −1 ) 1 (the A 2 component) with trialdehyde compound 2 (the B 3 component), which results from the nucleophilic substitution of 4‐hydroxybenzaldehyde on thiophosphorus trichloride . The resulting hyperbranched PEG‐polyazomethine (or polyimine) polymer is then dried and hydrophosphorylated with dimethylphosphonate to afford the title phosphonate‐functionalized, hyperbranched PEG.…”

“…Typically, 1125 mg (0.75 mmol) of bis(3‐aminopropyl) terminated PEG (Mn ∼1500) 1 and 213 mg (0.50 mmol) of trialdehyde 2 were dissolved in 100 mL of THF and heated at 55°C for 2 days under argon. After cooling, the reaction mixture was dried with magnesium sulfate.…”

Tricoordinated phosphorus‐containing macrocycles: New synthetic strategies

“…We have already demonstrated that tetracoordinated phosphorus-containing macrocycles [3], multimacrocycles [ 4 ] , cryptands 151, dendrimers Dedicated to Prof. Shigeru Oae on the occasion of his seventy-"'To whom correspondence should be addressed. fifth birthday.…”

“…We have already demonstrated that tetracoordinated phosphorus-containing macrocycles [3], multimacrocycles [ 4 ] , cryptands 151, dendrimers [ 6 ] , or functionalized phosphorhydrazones [7] can easily be obtained by reacting phosphorhydrazides with aldehydes. This general synthesis has been applied in two cases for the preparation of tricoordinated phosphorus-containing macrocycles, starting from tricoordinated hosphorus dialdehydes.…”