780777-89-1Relevant academic research and scientific papers
Synthesis of derivatives of the new condensed system 4H,7H-furo[3′, 4′:6,7]cyclohepta[1,2-b]pyran
Arsen'eva,Arsen'ev
experimental part, p. 136 - 142 (2009/04/03)
8-Hydroxy-1,3-dimethyl-4H-cyclohepta[c]furan-4-one reacts with arylidenemalononitriles and, like 1,3-oxo enols, forms the corresponding condensed 2-amino-4H-pyrans. The analogous reaction with 3-(dicyanomethylene) indolin-2-ones give spirocyclic 2-amino-4
