Rh-Catalyzed C–H activation/intramolecular condensation for the construction of benzo[f]pyrazolo[1,5-a][1,3]diazepines

Author:

Ning Yi12345,He Xinwei12345ORCID,Zuo Youpeng12345,Wang Jian12345ORCID,Tang Qiang12345,Xie Mengqing12345,Li Ruxue12345,Shang Yongjia12345ORCID

Affiliation:

1. Key Laboratory of Functional Molecular Solids

2. Ministry of Education

3. Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base)

4. College of Chemistry and Materials Science

5. Anhui Normal University

Abstract

A novel and mild Rh(iii)-catalyzed cascade C–H activation/intramolecular condensation of 1-aryl-1H-pyrazol-5-amines with cyclic 2-diazo-1,3-diketones for the synthesis of various important benzo[f]pyrazolo[1,5-a][1,3]diazepines has been developed.

Funder

National Natural Science Foundation of China

Natural Science Foundation of Anhui Province

Anhui Normal University

Publisher

Royal Society of Chemistry (RSC)

Subject

Organic Chemistry,Physical and Theoretical Chemistry,Biochemistry

Reference71 articles.

1. C. Valdes and M.Bayod , The Chemistry of Benzodiazepines , in Modern Heterocyclic Chemistry , ed. J.Alvarez-Builla , J. J.Vaquero and J.Barluenga , Wiley-VCH , 2011 , 1st edn, vol. 4 , pp. 2175–2230

2. Analysis of the Structural Diversity, Substitution Patterns, and Frequency of Nitrogen Heterocycles among U.S. FDA Approved Pharmaceuticals

3. Privileged Diazepine Compounds and Their Emergence as Bromodomain Inhibitors

4. T. P. Meagher and R.Murugan , 1,2-Diazepines , in Comprehensive Heterocyclic Chemistry III , Elsevier , 2008 , pp. 143–160

5. 1,2-Diazepines: a new vista in heterocyclic chemistry

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