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RISThe Mechanism of Fries Rearrangement and Acylation Reaction in Polyphosphoric Acid
The Mechanism of Fries Rearrangement and Acylation Reaction in Polyphosphoric Acid were studied...
Nanomagnetically modified polyphosphoric acid (NiFe2O4@SiO2–PPA): an efficient, fast, and reusable catalyst for the synthesis of 2-thioxoquinazolinones under solvent-free conditions
Polyphosphoric acid functionalized silica-coated magnetic nanoparticles with core–shell structure (NiFe2O4@SiO2–PPA) has been used as a magnetically recyclable green catalyst for the one-pot three-component synthesis of 2-thioxoquinazolinones...
A study of probing the mechanism of acylation Reactions and Fries Rearrangement by Polyphosphoric acid (PPA(
P2O5 /H3PO4 (PPA) was found to be an efficient new reagent for probing the mechanism of acylation reactions and Fries rearrangement of acyloxy benzene derivatives and also the direct acylation reactions of phenol derivatives ...
Polyphosphoric acid supported on silica-coated NiFe2O4 nanoparticles: An efficient and magnetically-recoverable catalyst for N-formylation of amines
A rapid, green and simple method for the N-formylation of various aromatic amines with
formic acid using polyphosphoric acid supported on silica-coated NiFe2O4 magnetic
nanoparticles (NiFe2O4@SiO2–PPA) under solvent-free conditions...