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Bomane sultam boron enolates

An interesting asymmetric aldol reaction utilizing enantiomerically homogeneous bomane sultam derived boron enolates has recently been reported by Oppolzer et al. The reaction of aldehydes with boron enolates (57), generated from acyl sultams (58) under standard enolization conditions (Pr 2NEt/Bu2BOTf/0 C), provides syn aldol products (59) with extremely high ratios of (59) to (60) as shown in Scheme 29. Results from the aldol reactions with representative aldehydes are summarized in... [Pg.252]

See other pages where Bomane sultam boron enolates is mentioned: [Pg.560]   
See also in sourсe #XX -- [ Pg.252 ]

See also in sourсe #XX -- [ Pg.252 ]

See also in sourсe #XX -- [ Pg.252 ]



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