Triethylenetetramine-Grafted Magnetic Graphene Oxide (Fe3O4@GO-NH2) as a Reusable Heterogeneous Catalyst for the One-Pot Synthesis of 2-Amino-4H-Benzopyran Derivatives

Triethylenetetramine-grafted magnetic graphene oxide (Fe3O4@GO-NH2) was used as a reusable heterogeneous catalyst in the preparation of 2-amino-4H-benzopyran derivatives. The characteristics of this method include green reaction conditions, easy separation, compatibility with the environment, the cost-effectiveness of the catalyst, and high yield (85-98%) in a short reaction time. It was also found that it could be reused for at least seven cycles without significant performance degradation.

Automated summary

In this study, a reusable magnetic graphene oxide catalyst was used for the efficient preparation of 2-amino-4H-benzopyran derivatives. The method exhibited green reaction conditions, easy separation, cost-effectiveness, and high yield. Furthermore, the catalyst showed good recyclability with minimal performance degradation after multiple cycles.