Patent ID: 11865374
Assignee: EVONIK OPERATIONS GMBH
Field: Pharmaceuticals (Chemistry)
Classification: CPC A  C | IPC A  C

Claim 5:
6. The process according to claim 5, wherein the initiator is selected from the group consisting of 2,2′-azo-bis(2-methyl propionitrile), 2,2′-azodi(2-methylbutyronitrile), 1,1′-azodi(hexahydrobenzonitrile), 4,4′-azo-bis(4-cyanovaleric acid), 2,2′-azo-bis(2,4-dimethyl valeronitrile), and 2,2′-azo-bis(2-cyclopropyl propionitrile), 2,2′-azo-bis(2-cyclobutyl propionitrile), 2,2′-azo-bis(2-cyclobutyl propionitrile), 2,2′-azo-bis(2,4-dimethyl valeronitrile), 1,1 ‘-azo-bis(1-cycloheptanenitrile), 2,2’-azo-bis(methylheptylonitrile), 2,2′-azo-bis(2-cyclohexyl propionitrile), azo-bisisobutyramidine 2HCl, phenyl-azo-triphenylmethane, 4-hydroxyphenyl-azo-triphenylmethane, peroxide and peroxy compounds, such as benzoyl peroxide, tert-butyl peroxy pivalate, tert-amyl peroxypivalate, acetyl peroxide, propionyl peroxide, 2-isopropionyl peroxide, butyryl peroxide, diisobutyryl peroxide, dilauroyl peroxide, didecanoyl peroxide, cumyl peroxyneodecanoate, 1,1,3,3-tetramethylbutyl peroxyneodecanoate, tert-butyl peroxydiethylacetate, tert-amyl peroxy-2-ethylhexanoate, tertamyl peroxy-2-ethylhexanoate, 2-methoxybenzoyl peroxide, cumyl peroxyneoheptanoate, tert-amyl peroxyneodecanoate, tert-butyl peroxyneodecanoate, tert-butyl peroxyneoheptanoate, tert-amyl peroxyacetate, 4 -benzylidenebutyryl peroxide, methyl phtholoyl peroxide, 1,1-di(tert-amylperoxy)cyclohexane, 3,6,9-triethyl-3,6,9-trimethyl -1,4,7-triperoxonane, isopropylcumyl hydroperoxide, 1,1,3,3-tetramethylbutyl hydroperoxide, cumyl hydroperoxide, tert-butyl hydroperoxide, tert-amyl hydroperoxide, diethyl peroxydicarbonate, tert-butylperoxy isopropyl carbonate, tert-butylperoxy 2-ethylhexyl carbonate, di-sec-butyl peroxydicarbonate, diisopropyl peroxydicarbonate, di(4-tert-butylcyclohexyl) peroxydicarbonate, di(2-ethylhexyl) peroxydicarbonate, dicetyl peroxydicarbonate, dimyristyl peroxydicarbonate, tert-amylperoxy 2-ethylhexyl carbonate, tert-butylperoxy isopropyl carbonate, tertbutyl peroxy 2-ethylhexyl carbonate, ethyltert-butyl peroxalate, benzyl (tert-butyl peroxy) oxalate, tertiary-butyl-N-(3-tolylperoxy) carbamate, potassium persulfate and mixtures thereof.