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Hydrazones sulfenylation

The alkylation of SAMP/RAMP hydrazones with heteroelectrophiles leads to enantiomerically pure a-silyl aldehydes and ketones (eq 15), a-sulfenyl aldehydes and ketones (eq 16), and a-hydroxy aldehydes and ketones (eq 17). ... [Pg.34]

Interception of lithium enolates with A-fluoro-3,3-dichloro-2,10-bomanesultam 21 provides chiral a-fluoro ketones. SAMP/RAMP hydrazones of ketones undergo enantioselective sulfenylation and phosphanylation. ... [Pg.81]

Chiral 2-sulfenylated aldehydes. Alkylation of the hydrazone derived from methylthioacetaldehyde, followed by ozonolytic cleavage of the chiral auxiliary constitutes a route to this class of compounds. [Pg.22]

Enders D, Schafer T, Mies W. Enantioselective synthesis of a-sulfenylated ketones and aldehydes via a-thiolation of metalated SAMP/RAMP hydrazones. Tetrahedron 1998 54 10239-12052. [Pg.1441]

See other pages where Hydrazones sulfenylation is mentioned: [Pg.630]    [Pg.625]    [Pg.267]    [Pg.22]   
See also in sourсe #XX -- [ Pg.127 ]



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