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Alkylation of carbanion

The target molecule above contains a chiral center. An enantioselective synthesis can therefore be developed We use this opportunity to summarize our knowledge of enantioselective reactions. They are either alkylations of carbanions or addition reactions to C = C or C = 0 double bonds ... [Pg.200]

Alkylation of carbanions of a-halogenomethyl sulphoxides enables one to elongate the alkyl chain403-406 (equations 175 and 176). a-Chlorosulphoxides react with nitroarenes in... [Pg.307]

Alkylation of carbanions derived from allyl aryl sulfones 236 with alkyl halides is known... [Pg.629]

C-Alkylation of carbanions generated from trimethylsilyl derivatives... [Pg.238]

Chiral crown ether phosphine-palladium complexes have been used to catalyse the alkylation of carbanions derived from a-nitro ketones and a-nitro esters,63 and proline rubidium salts have been used to catalyse asymmetric Michael addition of nitroalkanes to prochiral acceptors 64 80% enantioselectivity can be achieved in each case. [Pg.339]

Previous attempts of enantioselective alkylations of carbanions via phase-transfer catalysis were reported but... [Pg.41]

See other pages where Alkylation of carbanion is mentioned: [Pg.28]    [Pg.57]    [Pg.32]    [Pg.33]    [Pg.28]    [Pg.143]    [Pg.143]    [Pg.146]    [Pg.148]    [Pg.150]    [Pg.152]    [Pg.154]    [Pg.156]    [Pg.158]    [Pg.160]    [Pg.162]    [Pg.164]    [Pg.166]    [Pg.168]    [Pg.170]    [Pg.174]    [Pg.176]    [Pg.178]    [Pg.180]    [Pg.182]    [Pg.184]    [Pg.186]    [Pg.188]    [Pg.190]    [Pg.192]    [Pg.194]    [Pg.196]    [Pg.198]    [Pg.200]    [Pg.202]    [Pg.204]    [Pg.206]    [Pg.208]    [Pg.210]    [Pg.212]   
See also in sourсe #XX -- [ Pg.8 , Pg.176 ]

See also in sourсe #XX -- [ Pg.8 , Pg.176 ]



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Alkylation carbanion

Alkylation of Simple Carbanion-Enolates

Alkylation of Stable Carbanion-Enolates

Alkylation of carbanions

Asymmetric Alkylation of Stabilized Carbanion

Carbanions alkyl

Carbanions alkylation

Carbanions alkylations

Reaction of stabilized carbanions (enolates) with alkyl halides (enolate alkylation)

The Alkylation of Carbanions

Through the Alkylation or Phosphorylation of Carbanions

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