Quinoxalines and related compounds. Part IX. Preparation of 2-aryloxyquinoxalines and their cyclisation to benzofuro[2,3-b]quinoxalines
- 1 January 1974
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Perkin Transactions 1
- p. 129-132
- https://doi.org/10.1039/p19740000129
Abstract
When 2-chloroquinoxaline is treated with a sodium aryloxide in an excess of the corresponding phenol, a mixture of the expected quinoxalinyl ether and the corresponding benzofuro[2,3-b]quinoxaline is obtained. Polyphosphoric acid has been found to be the best reagent for the cyclisation of the isolated quinoxalinyl ethers to the benzofuroquinoxalines.Keywords
This publication has 0 references indexed in Scilit: