Catalytic Cyclization/Silylation of Dienes Containing 1, 1-Disubstituted Olefins Using Organolanthanide and Group 3 Organometallic Complexes

…, ED Dowdy, H Schumann

Index: Molander, Gary A.; Dowdy, Eric D.; Schumann, Herbert Journal of Organic Chemistry, 1998 , vol. 63, # 10 p. 3386 - 3396

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Citation Number: 40

Abstract

The catalytic cyclization/silylation reaction of hindered dienes has been investigated using the relatively unhindered complexes Me2Si (C5H3SiMe3) 2YCH (TMS) 2 and [CpTMS2LnMe] 2 (Ln= Y, Lu). A wide variety of dienes and trienes bearing a number of functional groups were cyclized, affording silanes containing quaternary centers in a diastereoselective fashion and in good yield. The products can be oxidized using one of ...