Copper(I) <i>tert</i>-Butoxide-Promoted 1,4 C<sup>s</sup><sup>p</sup><sup><sup>2</sup></sup>-to-O Silyl Migration:  Stereospecific Allylation of (<i>Z</i>)-γ-Trimethylsilyl Allylic Alcohols
                                
                                    
                                        作者:Haruhiko Taguchi、Kazushi Ghoroku、Makoto Tadaki、Akira Tsubouchi、Takeshi Takeda                                    
                                    
                                        DOI:10.1021/ol016837w
                                    
                                    
                                        日期:2001.11.1
                                    
                                    [GRAPHICS]The cyclic silyl ethers, 2,2-dimethyl-1-oxa-2-slia-3-cyclopentenes, were produced by the treatment of (2)-gamma -trimethylsilyl allylic alcohols with a catalytic or stoichiometric amount of lithium tort-butoxide. On the other hand, successive treatment of the alcohols with copper(l) tert-butoxide and allylic halides followed by the tetrabutylammmonium fluoride assisted hydrolysis produced the allylation products, 2,5-alkadien-1-ols, with complete retention of configuration of the double bond.