Di(2-methyl-2-phenyl propyl) peroxy dicarbonate and other novel (2-alkyl-2-phenyl) substituted peroxy dicarbonates

#1. Field of the Invention

#This invention relates to organic peroxide polymerization initiators and to their use in the polymerization of monomers and in the curing of unsaturated polyesters. In particular, it relates to peroxydicarbonates in which each carbonate moiety is di-substituted at its .beta. carbon atom with an alkyl group and a phenyl group.

#2. Brief Description of the Prior Art

#The following examples are illustrative of the synthesis of the peroxydicarbonates of the present invention and of their utility as polymerization initators. As will be obvious and understood, other compounds within the scope of this invention may be formed by selecting appropriate reactants and quantities, and thus the examples provided should not be construed as limiting the scope of the invention.

#To 10.00 gm (0.043 mole) of 90.6% 2-methyl-2-phenyl propyl chloroformate and 5 ml of isopropanol cooled in an ice bath was added 1.92 gm (0.028 mole) of 50% H.sub.2 O.sub.2 and 5 ml of isopropanol. After 10 minutes, 0.1 gm of methyl tricaprylyl ammonium chloride was added. Then 3.80 gm (0.0475 mole) of 50% NaOH and 1.0 gm of H.sub.2 O were added at 5.degree. C. over 30 minutes. The mixture was stirred at 20.degree. C. for 1 hour and then added to 700 ml of H.sub.2 O. The solid was washed with methanol and dried under vacuum to give 6.28 gm of 2M2PPPD. Product active oxygen analysis: theory 4.14; found 3.76, 90.8% pure; 68.6% yield. The product had a m.p. of 59.degree.-60.degree. C.

#The following Table A lists other peroxydicarbonates of the instant invention which can be prepared according to the Typical Experimental Procedure of Example I using the starting haloformates listed: