Preparation, identification and application of 1,3-bis triphenylphosphonium propane peroxodisulfate in oxidation of benzylic alcohols

Oxidation of alcohols to carbonyl compounds is an organic functional group transformation and this is one of the most important basic reaction in synthetic organic chemistry.1The peroxodisulfate ion has been shown to be a strong oxidizing agent for a variety of organic compounds. Some reported successful applications of this oxidant are oxidative decarboxylation of acids, aromatic hydroxylation, oxidation of alkyl benzenes, oxidation of carbon-nitrogen double bonds, alkenes, amines, alcohols.2,3Herein, a new member of stable phosphorus-based peroxodisulfate family, 1,3 – bis triphenylphosphonium propane peroxodisulfate was easily prepared as a mild and efficient oxidizing agent for oxidation of various benzylic alcohols to their corresponding compounds in water under reflux condition as green chemistry.It has been characterized by 1H-NMR, 13C-NMR, 31P-NMR, FT-IR, single-crystal X-ray diffraction crystallography and differential scanning calorimetry, thermogravimetric analysis, and differential thermal analysis.This salt represents different advantages such as thermal and Physico-chemical stability, good selectivity, simple working up, harmless in comparison to strong chromium oxides and permanganate ions.

کلیدواژه ها:

diphosphonium peroxydisulfate ، oxidizing agent ، X-ray crystallography ، benzylic alcohols.