... Download full text in PDF. Tetrahedron Letters, Vo1.22, No-43, PP 4269 - 4270, 1981 0040-4039/81/434269-0202.00/0 Printed in Great Britain 981 Pergamon Press Ltd. SYNTHESIS OF 4-YLIDENEBUTENOLIDES FROM 2-TRIMETHYLSILOXYFURAN Morio ASAOKA, Noboru YANAGIDA, Keiji ISHIBASHI, and Hisashi TAKEI* Department of Life Chemistry, Tokyo Institute of Technology Nagatsutacho, Midoriku, Yokohama 227, Japan Summary ...