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Electrophilic additions hydroxy amino acids

The use of enantiomerically pure (R)-5-menthyloxy-2(5.//)-furanone results in lactone enolates, after the initial Michael addition, which can be quenched diastereoselectively trans with respect to the /J-substituent. With aldehydes as electrophiles adducts with four new stereogenic centers arc formed with full stereocontrol and the products are enantiomerically pure. Various optically active lactones, and after hydrolysis, amino acids and hydroxy acids can be synthesized in this way317. [Pg.994]

See other pages where Electrophilic additions hydroxy amino acids is mentioned: [Pg.382]    [Pg.245]    [Pg.28]    [Pg.50]    [Pg.182]    [Pg.136]    [Pg.121]    [Pg.554]    [Pg.96]    [Pg.2131]    [Pg.24]    [Pg.225]    [Pg.204]    [Pg.380]    [Pg.147]    [Pg.79]    [Pg.204]    [Pg.604]    [Pg.40]    [Pg.388]    [Pg.733]    [Pg.733]    [Pg.162]    [Pg.692]    [Pg.223]    [Pg.18]    [Pg.650]    [Pg.733]    [Pg.16]   
See also in sourсe #XX -- [ Pg.24 ]



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