ZnBr2-catalyzed Stereospecific 1,4-Elimination of 1-Methoxymethyl-2-(trimethylsilylmethyl)cyclobutanes. Stereoselective Preparation of 1,1,5-Trisubstituted (E)- and (Z)-1,5-Dienes

Article abstract of DOI:10.1246/cl.1992.1631

The stereoselective addition of alkylmetals to 2-(trimethylsilylmethyl)-1-cyclobutyl ketones and the ZnBr2-catalyzed stereospecific ring-opening reaction of resulting 1-methoxymethyl-2-(trimethylsilylmethyl)cyclobutanes gave 1,1,5-trisubstituted 1,5-diene