
Tetrahedron Letters p. 7509 - 7510 (1992)
Update date:2022-07-29
Topics: Experimental terms Simple access
Plug
Friedrichsen
The synthesis of benzotropolones 4a,b utilizing an intramolecular 1,3-dipolar cycloaddition reaction with benzopyryliumolates (2a,b; generated in situ) is reported.
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