138192-80-0Relevant academic research and scientific papers
Synthesis of 2H ,4H ,9bH - Furo[3,2-c][1]benzopyrans by a new intramolecular cycloaddition of a carbonyl ylide to an acetylene
Bernaus,Font,De March
, p. 7713 - 7718 (2007/10/02)
Thermal treatment of oxiranes 1 and 4 affords 2H, 4H, 9H-furo[3,2-c][1]benzopyrans 5 and 6 through an intra-molecular 1,3-dipolar cycloaddition between the carbonyl ylide, generated by ring opening of the oxirane, and the acetylene moiety.
