[C:1]([C:5]1C=C(C)C(N)=CC=1N)(C)([CH3:3])[CH3:2].C(C1C=CC(N)=C(C)C=1N)(C)(C)C.C1(C)C=[CH:31][CH:30]=[C:29]([NH2:33])[C:28]=1[NH2:34].[CH3:36][C:37](=[CH2:39])[CH3:38].[C:40]1(=O)OCC[O:41]1.C(=O)=O>C(C1C=CC(C)=C(N)C=1N)(C)(C)C>[OH:41][CH2:40][CH2:39][C:37]1[C:38]([C:1]([CH3:5])([CH3:3])[CH3:2])=[C:28]([NH2:34])[C:29]([NH2:33])=[C:30]([CH3:31])[CH:36]=1A 1,000 ml three-neck, round bottom flask was charged with 178 grams (1 mole) of a mixture consisting of 80 parts by weight 5-tertiary butyl-2,4-toluenediamine and 20 parts of a 3-tertiary-butyl-2,6-toluenediamine mixture. The tertiary-butyl-toluenediamine was prepared by reacting an 80:20 toluenediamine commercial mix with isobutylene in the presence of an H-Y zeolite catalyst. After charging the tertiarybutyl-toluenediamine to the flask, 176 grams (2 moles) of ethylene carbonate were charged to the vessel and the contents stirred. The ethylene carbonate dissolved readily in the tertiary-butyl-toluenediamine and a clear amber solution resulted. The contents were heated to a temperature of about 150° C. and at such time carbon dioxide evolution appeared. Heating was continued until a temperature reached about 260° C. during which time carbon dioxide gas evolution ceased. Approximately 1.7 cubic feet or 2.2 moles of carbon dioxide recovered from the vessel.
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