Anthranilic Acid → N-Phenylanthranilic Acid
Reaktionsgleichung
Br[C:2]1[CH:3]=[C:4](C)[CH:5]=[CH:6][C:7]=1[N+]([O-])=O.[NH2:12][C:13]1[CH:21]=[CH:20][CH:19]=[CH:18][C:14]=1[C:15]([OH:17])=[O:16]>>[C:2]1([NH:12][C:13]2[C:14](=[CH:18][CH:19]=[CH:20][CH:21]=2)[C:15]([OH:17])=[O:16])[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1Komponenten
3
Versuchsvorschrift
As shown in Scheme 7, coupling of 3-bromo-4-nitrotoluene with 2-amino-benzoic acid via an Ullmann reaction yields an N-phenyl-anthranilic acid. After protection of the acid with 2-amino-2-methyl-1-propanol, oxidation affords the corresponding aldehyde. Addition of vinyl magnesium bromide and deprotection provides the N-phenyl-anthranilic acid containing a latent Michael acceptor. ##STR15##
Quellen und Nachweise
- ORD-Eintrag
- ord-920e207501f64dc5941e0fe889c060c3
- Quelldatensatz
- uspto-grants-1995_03
- Patentnummer
- US05399790
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