oates by [3+3] Cyclocondensations of 3-Arylthio-1-silyloxy-1,3-butadienes with 3-Oxo-orthoesters, 1,1,3,3-Tetramethoxypropane and 1,1-Bis(methylthio)-1-en-3-ones”. 324. Mohanad Shkoor, Olumide Fatunsin [...] Reactions of 1-Methoxy-1-trimethylsilyloxy-3-phenylthio-1,3-butadienes with 1,1-Diacylcyclopropanes”. 239. Stefanie Reim, Peter Langer*, Tetrahedron Lett. 2008 , 49 , 2329-2332. “The First 4-Chloro-1,3-bis( [...] Substituted Salicylates and Pyran-4-ones by Cyclocondensation of 1,3-Bis(silyloxy)-1,3-butadienes with 1,1-Dimethoxy-4,4-dichlorobut-1-en-3-one. Control of the C,C- and C,O-Regioselectivity by the Choice
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