Compound Q&A

How is 4-Amino-1,3-dihydro-2H-benzimidazol-2-one (CAS: 75370-65-9) typically synthesized?

Answer

4-Amino-1,3-dihydro-2H-benzimidazol-2-one
4-Amino-1,3-dihydro-2H-benzimidazol-2-one can be synthesized via the Friedel-Crafts alkylation of 2-benzimidazolone or by the condensation of 2-benzimidazolinone with ammonia. The reactions are typically catalyzed by Lewis acids such as aluminum trichloride. The yield is generally around 70-80%, with high selectivity for the desired product.

About

CAS No 75370-65-9
English Name 4-Amino-1,3-dihydro-2H-benzimidazol-2-one
Molecular Formula C7H7N3O
Molecular Weight 149.15 g/mol
SMILES C1=CC(=C2C(=C1)NC(=O)N2)N
InChIKey BCUSTVNWMJXDSE-UHFFFAOYSA-N
Last Updated: 2026-01-01 10:50

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