3-(Trifluoromethyl)aniline → 3-iodo-4-methyl-N-(3-(trifluoromethyl)phenyl)benzamide

温度

0 °C

To a suspension of 3-iodo-4-methylbenzoic acid (3.00 g, 11.4 mmol) in DCM (30 mL) at 0° C. was added oxalyl chloride (1.45 mL, 17.2 mmol) followed by two drops of DMF. The reaction was stirred at 0° C. for 30 minutes followed by warming to ambient temperature for 40 minutes. The mixture was concentrated in vacuo. To the resulting residue was added DCM (30 mL), DIPEA (2.99 mL, 17.2 mmol) and 3-(trifluoromethyl)-benzenamine (1.42 mL, 11.4 mmol). The reaction was stirred at ambient temperature for 1 hour. The mixture was then poured into water, and the product was extracted with DCM. The combined organic extracts were washed with water, followed by saturated sodium bicarbonate, and then dried over sodium sulfate. An equal volume of hexane was added and most of the DCM was then removed in vacuo. The resulting yellow solid was filtered, rinsed with hexane and air dried. (4.27 g, 92%).

1. temperatureby warming to ambient temperature for 40 minutes
2. concentrationThe mixture was concentrated in vacuo
3. stirringThe reaction was stirred at ambient temperature for 1 hour
4. extractionthe product was extracted with DCM
5. washThe combined organic extracts were washed with water
6. dry with materialdried over sodium sulfate
7. additionAn equal volume of hexane was added and most of the DCM
8. customwas then removed in vacuo
9. filtrationThe resulting yellow solid was filtered
10. washrinsed with hexane and air
11. customdried

ORDレコード

ord-4dcd7be8c7164f178f5cc798c710ebad

出典データセット

uspto-grants-2014_09

DOI

10.6084/m9.figshare.5104873.v1

特許番号

US08841318B2