Cleavage of Carbon-Carbon Bonds with High Stereochemical Control. 6. Asymmetric Synthesis of Chiral C-Centered Organosilanes by Haller-Bauer Cleavage of Optically Active, Nonenolizable α-Silyl Phenyl Ketones

Article abstract of DOI:10.1021/jo00267a031

Sequential alkylation and methylation of l-menthyl ester 10 provides diastereomeric mixtures in which 12 is slighthly enhanced over 13.Conversely, C-silation and alkylation of propionate ester 11 delivers 13 in excess.In either cause, a single chromatogra