Diethyl peroxydicarbonate

Diethyl Peroxydicarbonate. See Vol 5, D1247-L Ethv sthsi,Ai DatavMa Co Vrvi r C2Q4- bin f ) % iuiiui e wniuVi ww w u... 

Other groups [99, 100] investigated the possibility of carrying out a surfactant-assisted polymerization of VDF in scC02, using diethyl peroxydicarbonate (DEPDC) as a free radical initiator, with the aim of testing several perfluoropolyether compounds synthesized by Solvay Solexis as stabilizers. When ammonium carboxylate derivatives were used, an effective stabilization of the polymer particles was obtained, and the polymer was collected from the reactor with yields of up to 63%. This corresponded to a solid content in the reactor of 220 g I in the form... 

Diethylhydrogallium, see Diethylgallium hydride, 1715 Diethylhydroxytin hydroperoxide, 1757 Diethyllead dinitrate, 1686 Diethylmagnesium, 1681 Diethylmethylphosphine, 2030 Diethyl 4-nitrophenyl phosphate, 3323 Diethyl 4-nitrophenyl thionophosphate, 3322 t 3,3-Diethylpentane, 3193 Diethyl peroxide, 1693 Diethyl peroxydicarbonate, 2440 Diethylphosphine, 1728 N- (D i ethylphosphinoy 1) h yd ro x y I a m i n e, 1746 Diethyl phosphite, 1727 Diethyl succinate, 3026 Diethyl sulfate, 1704 Diethyl sulfite, 1703 Diethyl telluride, 1711 Diethylthallium perchlorate, 1676 Diethyl trifluoroacetosuccinate, 3314 Diethylzinc, 1712... 

The peroxy initiators bis(perfluoro-2-Ar-propoxypropionyl) peroxide (BPPP) and diethyl peroxydicarbonate (DEPDC) have had the greatest application in the heterogeneous polymerization of fluoroolefins in CO2. 

SYNS DIETHYL PEROXYDICARBONATE, >27% in solution pOT) DIETHYL PEROXYDIFORiMATE ETHYL PEROXYCARBONATE PEROXYDICARBONIC ACID, DIETHYL ESTER... 

DIETHYL-4-PENTENAMIDE see DJU200 DIETHYL PEROXYDICARBONATE see DJU600 DIETHYL PEROXYDICARBONATE, >27% in solution (DOT) see DJU600... 

O 53.89% expl oil or solid possessing the sharp ozone-like odor of volatile acyl peroxides, mp 28-35° (dec), decompg spontaneously at RT, deflgr on contact with a flame np 1.4017 at 20° sol in a wide range of org solvs si sol in w obtd in an impure form by Wieland et al (Ref 2) by reaction of ethyl chloroformate in chlf soln with powdered Na peroxide. Strain et al (Ref 3) prepd the compd by the same procedure but pointed out the special care that was reqd in temp control (0-10°) in all operations of prepn purification because of its high degree of thermal instability. When subjected to heat, friction or shock. Diethyl Peroxydicarbonate app>ears to be more sensitive than Benzoyl Peroxyde (qv)... 

Aryl azides undergo induced decomposition when heated at 50-80° in -propyl alcohol in the presence of diethyl peroxydicarbonate (243) For example, 2,4,6-tribromoazidobenzene (242) and 243 (ca. 1 1 mole ratio) in t-propyl alcohol gave a 35% yield of 2,4,6-tribromoaniline 244). It was felt that the radical responsible for the induced decomposition was the 2-hydroxy-i-propyl radical. 

When j6-toluenesulphonyl azide was heated at 50-80° in isopropyl alcohol in the presence of diethyl peroxydicarbonate (20-3 azide 1 -4 peroxide), -toluenesulphonamide and acetone were obtained in 75 and 81% yields respectively " . It was thought that the 2-hydroxy-t-propyl radical (292) added to the azide to give 293 (equation 132) and that an intramolecular reduction and elimination of nitrogen occurred via a cyclic intermediate (294) to give the radical (295) and acetone. Hydrogen abstraction by (295) would then give the sulphonamide. 

Acyl azides can be decomposed by reaction with free radicals. In methanol, ethoxycarbonyl azide requires one equivalent of radical initiator (diethyl peroxydicarbonate) to decompose one mole of the azide but in alcohols that are better hydrogen donors, chain reactions occur Homer2 studied the dehydrogenation of isopropanol by aroyl, carbamoyl and alkoxycarbonyl azides ... 

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