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Synlett 2025; 36(06): 734-738
DOI: 10.1055/s-0043-1775402
DOI: 10.1055/s-0043-1775402
letter
A Novel Synthesis of Substituted Benzo[1,2,4]triazine Derivatives via Copper-Catalyzed Intermolecular N-Arylation of 2-Iodoaniline and Hydrazonoyl Chlorides
This work was supported by Farhangian University.

Abstract
In this contribution, a speedy and direct approach for the synthesis of benzo[1,2,4]triazine derivatives via a copper-catalyzed intermolecular N-arylation of 2-iodoaniline and hydrazonoyl chlorides is described. The reaction proceeds in THF at room temperature with no need for any ligand. The use of simple and readily available starting materials, mild copper-catalytic reaction conditions, and good yields (72–92%) are remarkable specifications of this protocol.
Key words
Ullmann coupling - N-arylation - benzo[1,2,4]triazine - copper-catalyzed - hydrazonoyl chlorides - 2-iodoanilineSupporting Information
- Supporting information for this article is available online at https://doi.org/10.1055/s-0043-1775402.
- Supporting Information
Publication History
Received: 11 July 2024
Accepted after revision: 27 August 2024
Article published online:
30 September 2024
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