Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Acetonitrile | HCID 6342 | — |
| Reactant | 4-(Trifluoromethyl)benzoic acid | HCID 9966 | — |
| Reactant | 7-Chloro-1,8-naphthyridin-2-amine | HCID 85199 | — |
| Solvent | Water | HCID 962 | — |
| Product | HCID 13787383 | HCID 13787383 | 77.9% |
Reaction Steps
The procedure is analogous to that described in Example 1, but starting with 4-trifluoromethylbenzoic acid (10 g), N,N'-carbonyldiimidazole (8.4 g) and 2-amino-7-chloro-1,8-naphthyridine (5.9 g). The product obtained by precipitation in water (11.5 g; m.p. 236° C.) is dissolved in boiling acetonitrile (250 cc). After cooling for 4 hours at 4° C., the crystallized solid is separated by filtration, washed with acetonitrile (2×20 cc) and dried at 45° C. under reduced pressure (0.07 kPa). N-(7-Chloro-1,8-naphthyridin-2-yl)-4-trifluoromethylbenzamide (9 g), m.p. 236° C., is obtained.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US04720500 |
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| Source dataset | uspto-grants-1988_01 |
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| ORD ID | ord-69f0cfa51d2241ebb2420c7717cd158a |
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| Source note | uspto-grants-1988_01 |
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