476000-77-8Relevant articles and documents
Synthesis and cycloadditions of 9H-furo[3,4-b][1]benzo(thio)pyran-9-ones: Furan ring formation by a novel hydrolytically induced cycloreversion
Daia, G.Elena,Gabbutt, Christopher D.,Hepworth, John D.,Heron, B.Mark,Hibbs, David E.,Hursthouse, Michael B.
, p. 4507 - 4510 (2007/10/03)
C-2 lithiation of acetals 2 followed by trapping with aldehydes gives 3. Subsequent unmasking of the acetal function provides furobenzo(thio)pyrans 4, cycloadditions of which have been investigated.