Stabilization and activation of dienolates with germanium and tin. Stero- and regioselective aldol reactions, regioselective coupling reactions, and regioselective synthesis of amino acid derivatives
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Yamamoto,Hatsuya,Yamada
p. 3118 - 3128
(2007/10/02)
TIN ANALOGS OF THE VINYLOGOUS REFORMATSKY REACTION. REGIO- AND STEREOCHEMICAL CONSIDERATIONS
Ethyl-4-(tri-n-butyltin)-3-methyl crotonate and ethyl-4-(tri-n-butyltin)-3-methoxycrotonate were condensed with benzaldehyde and cyclohexanone.The regio- and stereochemical profiles were determined in an effort to control the course of dienolate additions
Fan, RuLin,Hudlicky, Tomas
p. 5533 - 5536
(2007/10/02)
Carbon-Carbon Bond Formation at the γ-Position of Dienolates via the Germanium Masked Dienolates
Trapping of the lithium dienolate (1), derived from 3-methyl-2-butenoate, with Me3GeX (X = Br or Cl gives the α-germylated derivative (2), which reacts with various electrophiles at the γ-position.