... Download full text in PDF. Tetrahedron Letters,Vol.26,No.22,pp 2689-2692,1985 0040-4039/85 $3.00 + .00 Printed in Great Britain 985 Pergamon Press Ltd. NOVEL RING TRANSFER REACTION OF FURANS VIA INTRAMOLECULAR DIELS-ALDER REACTION OF ALLENE INTERMEDIATE: A NEW DOUBLE ANNULATION REACTION Kenji Hayakawa, Yasuchika Yamaguchi, and Ken Kanematsu* Institute of Synthetic Organic Chemistry, Fuculty ...