|
1
|
Capel E, Luis-Barrera J, Sorazu A, Uria U, Prieto L, Reyes E, Carrillo L, Vicario JL. Transannular Approach to 2,3-Dihydropyrrolo[1,2- b]isoquinolin-5(1 H)-ones through Brønsted Acid-Catalyzed Amidohalogenation. J Org Chem 2022; 87:10062-10072. [PMID: 35880953 PMCID: PMC9361296 DOI: 10.1021/acs.joc.2c01045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
![]()
A transannular approach has been developed for the construction
of pyrrolo[1,2-b]isoquinolinones starting from benzo-fused
nine-membered enelactams. This process takes place in the presence
of a halogenating agent and under Brønsted acid catalysis and
proceeds via a transannular amidohalogenation, followed by elimination.
The reaction has been found to be wide in scope, enabling the formation
of a variety of tricyclic products in good overall yield, regardless
of the substitution pattern in the initial lactam substrate. The reaction
has also been applied to the total synthesis of a reported topoisomerase
I inhibitor and to the formal synthesis of rosettacin. Further extension
of this methodology allows the preparation of 10-iodopyrrolo[1,2-b]isoquinolinones by using an excess of halogenating agent
and these compounds can be further manipulated through standard Suzuki
coupling chemistry into a variety of 10-aryl-substituted pyrrolo[1,2-b]isoquinolinones.
Collapse
Affiliation(s)
- Estefanía Capel
- Department of Organic and Inorganic Chemistry, University of the Basque Country (UPV/EHU), P.O. Box 644, 48080 Bilbao, Spain
| | - Javier Luis-Barrera
- Department of Organic and Inorganic Chemistry, University of the Basque Country (UPV/EHU), P.O. Box 644, 48080 Bilbao, Spain
| | - Ana Sorazu
- Department of Organic and Inorganic Chemistry, University of the Basque Country (UPV/EHU), P.O. Box 644, 48080 Bilbao, Spain
| | - Uxue Uria
- Department of Organic and Inorganic Chemistry, University of the Basque Country (UPV/EHU), P.O. Box 644, 48080 Bilbao, Spain
| | - Liher Prieto
- Department of Organic and Inorganic Chemistry, University of the Basque Country (UPV/EHU), P.O. Box 644, 48080 Bilbao, Spain
| | - Efraím Reyes
- Department of Organic and Inorganic Chemistry, University of the Basque Country (UPV/EHU), P.O. Box 644, 48080 Bilbao, Spain
| | - Luisa Carrillo
- Department of Organic and Inorganic Chemistry, University of the Basque Country (UPV/EHU), P.O. Box 644, 48080 Bilbao, Spain
| | - Jose L Vicario
- Department of Organic and Inorganic Chemistry, University of the Basque Country (UPV/EHU), P.O. Box 644, 48080 Bilbao, Spain
| |
Collapse
|
|
2
|
Kandile NG, Mohamed MI, Zaky HT, Nasr AS, Ali YG. Quinoline anhydride derivatives cross-linked chitosan hydrogels for potential use in biomedical and metal ions adsorption. Polym Bull (Berl) 2021. [DOI: 10.1007/s00289-021-03633-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
|
|
3
|
Bastrakov MA, Starosotnikov AM. Synthesis of novel polyfunctional pyrrolo[2,1-a]isoquinolines based on 1,3-dipolar cycloaddition reactions. Russ Chem Bull 2019. [DOI: 10.1007/s11172-019-2617-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
|
4
|
Synthesis of ferrocene annulated trifluoromethylated heterocycles with crispine and lamellarin skeletons. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.07.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|