506432-71-9Relevant articles and documents
Stereocontrolled construction of tricyclic furan and pyrrolyl derivatives via tungsten-mediated [3+2] cycloaddition and intramolecular Diels-Alder reaction
Lin, Wen-Li,Taduri, B. Pratap,Liu, Rai-Shung
, p. 2457 - 2463 (2002)
Vinylpropargyl tungsten complexes were prepared to comprise a tethered unsaturated ester designed for intramolecular Diels-Alder reaction. Treatment of these vinylpropargyl tungsten complexes with aldehydes and imines in the presences of BF3·OE