Phosphorus Sulphur and Silicon, Vol. 132 pp. 79-83 Reprints available directly from the publisher Photocopying permitted by license only 0 1998 OPA (Overseas Publisher Association) NV Published by license under the Gordon and Breach Science Publishers imprint Printed in Malaysia ... Department of Chemistry, University of Shoumen, BG-9700 Shoumen, Bulgaria ... Synthesis of the 2-(trimethylsily1)- (3) and the 2-(diethoxyphosphony1)-1,3-butadienes (4) by Homer- ...