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Ketocarboxylic acids lactams

Isatin is the inner anhydride (lactam) of a y-amino-a-ketocarboxylic acid, isatinic acid (A), and is converted into a salt of this acid by the action of alkali. The keto-group in position 3 can condense with many other substances, and for this reason isatin is manufactured on a technical scale and converted into valuable indigoid vat dyes. The magnificent thioindigo scarlet, which is obtained from isatin and a sulphur analogue of indoxyl (the so-called hydroxythionaphthene), may be taken as example qq... [Pg.375]

Lithium diisopropylamide (LDA)-assisted nucleophilic substitution adjacent to the lactam carbonyl in 273 produced a-ketocarboxylic acids 274 (Scheme 114 <1998BML1973>). [Pg.40]

Lactams from ketocarboxylic acids Syntheses of 3-oxo-2-azabicyclo[3.3.0]octanes... [Pg.122]

Lactams from ketocarboxylic acids Stereospecific ring closure... [Pg.103]

See other pages where Ketocarboxylic acids lactams is mentioned: [Pg.651]    [Pg.146]    [Pg.306]    [Pg.292]    [Pg.294]    [Pg.521]   
See also in sourсe #XX -- [ Pg.16 , Pg.465 ]

See also in sourсe #XX -- [ Pg.16 , Pg.465 ]

See also in sourсe #XX -- [ Pg.28 , Pg.349 ]

See also in sourсe #XX -- [ Pg.16 , Pg.465 ]



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Ketocarboxylic acids

Lactams acids

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