Registry No.-I, 16133-73-6; 11, 16133-74-7; 111, 16133-75-8; VI, 16133-76-9; VII, 16133-77-0; VIII, 16133-78-1; IX, 16133-79-2; XII, 697-28-9. ... Acknowledgment.-We wish to thank Dr. Yasuhiko Kondo for his helpful comments. ... The Disilylation of Conjugated Dienes. The Configuration of Diene Anion Radicals and Dianions ... D. R. WEYENBERC, LH TOPORCER, AND L. E. NELSON Chemical Research Department of Dow Corning ...