A convergent regiospecific synthesis of zirconium enolates
α-Lithiated phenylsulphonyloxiranes insert into alkenylzirconocene chlorides with loss of phenylsulphinate to give zirconyloxiranes which smoothly rearrange by either α- or β- C-O cleavage to afford regiodefined zirconium enolates which may be further elaborated.
Kasatkin, Aleksandra,Whitby, Richard J.
p. 9857 - 9864
(2007/10/03)
Silyl Derivatives in the Synthesis of trans-β-Trimethylsilyl-α,β-unsaturated Ketones
Methods for the preparation of α-halo-α-(trimethylsilyl)methyl ethers are described.These substances react with (trimethylsilyl)methyl ketones to yield β-methoxy-β-(trimethylsilyl)ethyl ketones.Sodium trimethylsilanoate in dichloromethane solution has bee