Table 2.
Amine catalysts used in this study.
| Catalyst | Chemical Name | Chemical Structure |
|---|---|---|
| Amine 1 | Bis-[2-(N,N-dimethylamino)-ethyl]-ether |
|
| Amine 2 | 1,4-Diazabicyclo[2.2.2]octane |
|
| Amine 3 | N,N′-Bis[3-(dimethylamino)propyl]urea |
|
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