Oxidation Of Olefins In Presence Research Articles

New Extra Large Pore Chromium Oxophenylphosphate: An Efficient Catalyst in Liquid Phase Partial Oxidation Reactions

A new supermicroporous chromium oxophenylphosphate (CPP-1) has been synthesized using phenylphosphonic acid (PPA) as phosphorus source under hydrothermal condition at 443 K without using any structure- directing agent (SDA). The material has been characterized by powder XRD, FE SEM-EDS, TEM, TG-DTA, N2 sorption, XPS, FT IR, UV-Vis spectroscopic techniques and CHN chemical analysis. CPP-1 showed specific surface area of 313 m 2 g -1 with extra large supermicropores having dimension of ca. 1.4 nm. TEM result suggested lamellar type pore-wall structure for this material. It exhibited good catalytic property in partial oxidation of olefins in presence of tert- butylhydroperoxide (TBHP) as oxidant.

Anodic oxidation of olefins in presence of fluorine anion

1. The anodic oxidation of olefins in the presence of fluorine anion can be accompanied by the addition of two fluorine atoms to the multiple bond. Allylic substitution is a more characteristic reaction in the anodic oxidation of olefins. 2. The high lability of the allylic and benzylic fluorine atoms in acid medium is the reason for the formation of acetamides during the anodic oxidation of olefins in a solution of tetraethylammonium fluoride hydrofluoride in acetonitrile.