Aniline → HCID 178516132, compound
Reaction equation
[F:1][C:2]([F:12])([F:11])[C:3](=O)[CH2:4][C:5]([O:7]CC)=O.[NH2:13][C:14]1[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=1>>[F:12][C:2]([F:1])([F:11])[C:3]1[CH:4]=[C:5]([OH:7])[C:19]2[C:14](=[CH:15][CH:16]=[CH:17][CH:18]=2)[N:13]=1Participants
3
Procedure
Ethyl trifluoroacetoacetate (3.7 g) and aniline (1.8 ml) were reacted together in polyphosphoric acid according to Joullie et al, J. Med. Chem., 16, 134 (1973), to give 2-trifluoromethyl-4-hydroxyquinoline (1.8 g). The latter was reacted with phosphorous oxychloride and phosphorous pentachloride in a similar fashion to Example VIII to give 2-trifluoromethyl-4-chloroquinoline, which was used in Stage a.
Sources & evidence
- ORD record
- ord-07d8f48a4c8e4a7bbe58c5f334519f30
- Source dataset
- uspto-grants-1992_05
- Patent number
- US05114940
Reaction notes
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