Highly efficient and diastereoselective approaches to (+)- and (-)-grandisol
Two new routes to (+)-grandisol and three new routes to (-)-grandisol are described. All of them are highly efficient and diastereoselective. The common starting material is an easily available homochiral butenolide.
Alibes, Ramon,Bourdelande, Jose L.,Font, Josep,Parella, Teodoro
p. 1279 - 1292
(2007/10/03)
Ring enlargement reaction of 2-(1-alkenyl)-1-cyclobutyl ketones. A new method for the preparation of 4-acyl-1-cyclohexenes
Various 1,2-disubstituted 4-acyl-1-cyclohexenes were obtained by the ethylaluminum dichloride promoted ring enlargement reaction of 2-(1-alkenyl)-1-cyclobutyl ketones prepared by the conjugate addition of 1-alkenylmagnesium bromides With 1-cyclobutenyl ketones.
Fujiwara, Tooru,Takeda, Takeshi
p. 6027 - 6030
(2007/10/02)
Novel Silicon-Promoted Cyclialkylation of Alkenylmetal Derivatives
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Negishi, Ei-ichi,Boardman, Larry D.,Tour, James M.,Sawada, Hiroyuki,Rand, Cynthia L.
p. 6344 - 6346
(2007/10/02)
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