Pyrrole-2-carboxaldehyde → [(((Pyrrole-2-yl)methylidene)amino)ethyl]amine

The ligand [(((pyrrole-2-yl)methylidene)amino)ethyl]amine was prepared by adding a methanolic solution of pyrrole-2-carboxaldehyde (1.430 g, 15 mmol, 100 mL) to a methanolic solution of tris(2-aminoethyl)amine (0.720 g, 5 mmol, 10 mL). The resulting yellow solution was stirred at room temperature for 30 min. A methanolic solution of gallium(III) nitrate hydrate (1.280 g, 5 mmol, 150 mL) was added to the ligand solution and stirred at room temperature for 30 min. The solution was filtered and left to stand at ambient temperature until crystallization occurred. The crude material was then sublimed at 235° C.

1. stirringstirred at room temperature for 30 min
2. filtrationThe solution was filtered
3. waitleft
4. customto stand at ambient temperature until crystallization
5. customwas then sublimed at 235° C.

ORD record

ord-e456c332b3374d5998d0feebd957aafa

Source dataset

uspto-grants-2007_08

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US07261954B2