Synthesis of Mono-and Dialkylphosphates by the Reactions of Hydroxycompounds With the Phosphorus Pentaoxide Under Microwave Irradiation

Synthesis of phosphate monomers and bonding to dentin: Esterification methods and use of phosphorus pentoxide

“…8 An interesting alternative to C-O-P bond formation is the reaction of an alcohol with phosphorus pentoxide. 9 The present study had three main objectives: to investigate three different ways to remove the water generated by esterification in methacrylate synthesis, with the intention of obtaining a satisfactory chemical yield; to propose an alternative way of C-O-P bond formation, using phosphorus pentoxide; to evaluate the microtensile bond strength to dentin from an experimental self-etching primer composed of the synthesized monomer.…”

Solvent-Free Microwave Synthesis of Trialkylphosphates

“…Small signal corresponding to the secondary product (the pyrophosphates (δ = -12 ppm) was also observed. 1 H NMR confirmed the formation of trialkylphosphates and the acid dialkylphosphoric acids with characteristic signals corresponding to the protons CH 3 (δ = 0.9 ppm), (CH 2 ) n (δ = 1.2 -1.6 ppm), CH 2 -O-P (δ = 3.8 -4.1 ppm), P-O-H (δ = 7 -8 ppm) and aromatic C-H from d = 7 ppm.…”

Synthesis of High Purity Mono‐Alkyl Phosphate Using Cyclic Polyphosphoric Acid

“…However, the low purity of MAP, ranging from 60 to 90 wt% by traditional technology, restricts its application in deinking [1][2][3][4][5][6][7][8]. In the present paper, the synthesis of high purity MAP was studied by using cyclic polyphosphoric acid.…”