Stabilized Molecular Diphosphorus Pentoxide, P₂O₅L₂ (L = N-Donor Base), in the Synthesis of Condensed Phosphate-Organic Molecule Conjugates.

ABSTRACT: Commercial phosphorus pentoxide reacts with some N-donor bases to give the adducts P₂O₅L₂ and P₄O₁₀L₃ (L = DABCO, pyridine, 4-tert-butylpyridine). The DABCO adducts were structurally characterized by single-crystal X-ray diffraction. It is proposed that P₂O₅L₂ and P₄O₁₀L₃ undergo interconversion through a "phosphate-walk" mechanism, which was evaluated using DFT calculations. P₂O₅(pyridine)₂ (1) efficiently transfers monomeric diphosphorus pentoxide to phosphorus oxyanion nucleophiles, yielding substituted trimetaphosphates and cyclo-phosphonate-diphosphates (P₃O₈R)^2-

SUBMITTER: Qian K 

PROVIDER: S-EPMC10038927 | biostudies-literature | 2023 Mar

REPOSITORIES: biostudies-literature