Gold(I)-catalyzed cyclizations of silyl enol ethers: Application to the synthesis of (+)-lycopladine A
(Chemical Equation Presented) In control: Gold(I)-catalyzed intramolecular addition of silyl enol ethers to alkynes and allenes allows for the diastereoselective synthesis of cyclopentenes with control of the position of the double bond. The utility of th
Staben, Steven T.,Kennedy-Smith, Joshua J.,Huang, David,Corkey, Britton K.,LaLonde, Rebecca L.,Toste, F. Dean
p. 5991 - 5994
(2007/10/03)
W(CO)5(L)-catalyzed endo-selective cyclization of allenyl silyl enol ethers: An efficient method for the cyclopentene annulation onto α,β-unsaturated ketones
(Matrix presented) Indium-mediated allenylation of α,β -unsaturated ketones in the presence of tert-butyldimethylsilyl triflate and dimethyl sulfide gives 6-siloxy-1,2,5-trienes, which undergo W(CO) 5(L)-catalyzed 5-endo cyclization to give the
Miura, Tomoya,Kiyota, Koichi,Kusama, Hiroyuki,Lee, Kooyeon,Kim, Hyunseok,Kim, Sunggak,Lee, Phil Ho,Iwasawa, Nobuharu
p. 1725 - 1728
(2007/10/03)
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