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Synthesis 2016; 48(02): 256-262
DOI: 10.1055/s-0035-1560392
DOI: 10.1055/s-0035-1560392
paper
A Novel Convenient Synthesis of Pyridinyl and Quinolinyl Triflates and Tosylates via One-Pot Diazotization of Aminopyridines and Aminoquinolines in Solution
Further Information
Publication History
Received: 01 October 2015
Accepted after revision: 04 November 2015
Publication Date:
02 December 2015 (online)
Abstract
The first effective and simple method for the direct one-pot transformation of 2-, 3-, and 4-aminopyridines, 2,6-diaminopyridines, and 2-aminoquinoline into the corresponding pyridinyl and quinolinyl trifluoromethanesulfonates and tosylates in solvents was developed. The procedure involves diazotization of the heterocyclic amines with sodium nitrite in mixed hexane–DMSO or hexane–DMF solutions in the presence of trifluoromethanesulfonic acid or p-toluenesulfonic acid.
Supporting Information
- Supporting information for this article is available online at http://dx.doi.org/10.1055/s-0035-1561272.
- Supporting Information
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