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Beilstein J. Org. Chem. 2025, 21, 1595–1602, doi:10.3762/bjoc.21.123
Graphical Abstract
Scheme 1: Synthesis of fused pyrroles and azoles by [3 + 2] annulation reactions of azirines.
Scheme 2: Synthesis of benzo[4,5]thieno[3,2-b]pyrroles 3.
Scheme 3: Plausible mechanism for the formation of compounds 3.
Scheme 4: Post-modifications of 1H-benzo[4,5]thieno[3,2-b]pyrrole (3b).
Scheme 5: Synthesis of pyrrolo[3,2-b]indole 10.
Scheme 6: IPrCuCl-catalyzed reactions of indoles 9b,c with azirine 2a.
Scheme 7: Ni(II)- and Cu(I)-catalyzed reactions of indole 15 with azirine 2a.
Beilstein J. Org. Chem. 2024, 20, 3191–3197, doi:10.3762/bjoc.20.264
Scheme 1: Approaches to 2H-azirine-2,2-dicarboxylic acid derivatives.
Scheme 2: Synthesis of 2H-azirine-2,2-dicarboxylic acids 6.
Scheme 3: Transformations of 3-(tert-butyl)-5-chloroisoxazole-4-carbonyl chloride (1j).
Scheme 4: Synthesis of amides 10. aFiltration through celite after reaction with amine (without aqueous worku...
Scheme 5: Synthesis of esters 11.
Scheme 6: Synthesis of dicarbonyl azide 12.