Technology Process of [4-chloro-3-(3-chloro-5-cyanophenoxy)-2-fluorophenyl]acetic acid ethyl ester
There total 7 articles about [4-chloro-3-(3-chloro-5-cyanophenoxy)-2-fluorophenyl]acetic acid ethyl ester which
guide to synthetic route it.
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synthetic route:
- Guidance literature:
-
ethyl {4-amino-3-[(3-chloro-5-cyanophenyl)oxy]-2-fluorophenyl}acetate;
With
tert.-butylnitrite; copper dichloride;
In
acetonitrile;
at 70 ℃;
for 2.5h;
With
hydrogenchloride;
In
water; acetonitrile;
- Guidance literature:
-
Multi-step reaction with 7 steps
1.1: N,N-dimethyl-formamide / 0 °C
1.2: Cooling with ice
2.1: 2,4,6-trimethyl-pyridine; lithium iodide / 8 h / 185 °C / Inert atmosphere
2.2: Cooling with ice
3.1: sodium hydride / tetrahydrofuran; mineral oil / 0.5 h / 0 °C
3.2: 20 °C
4.1: sodium hydride / tetrahydrofuran; mineral oil / 0.5 h / 0 °C
4.2: 4 h / 0 - 20 °C
4.3: 20 °C
5.1: trifluoroacetic acid / dichloromethane / 0.75 h / 0 - 60 °C
5.2: 0 °C
6.1: sodium dithionite / tetrahydrofuran; water / 1 h / 20 °C
7.1: tert.-butylnitrite; copper dichloride / acetonitrile / 0.25 h / 50 °C
With
2,4,6-trimethyl-pyridine; tert.-butylnitrite; sodium dithionite; sodium hydride; trifluoroacetic acid; copper dichloride; lithium iodide;
In
tetrahydrofuran; dichloromethane; water; N,N-dimethyl-formamide; acetonitrile; mineral oil;
- Guidance literature:
-
Multi-step reaction with 6 steps
1.1: 2,4,6-trimethyl-pyridine; lithium iodide / 8 h / 185 °C / Inert atmosphere
1.2: Cooling with ice
2.1: sodium hydride / tetrahydrofuran; mineral oil / 0.5 h / 0 °C
2.2: 20 °C
3.1: sodium hydride / tetrahydrofuran; mineral oil / 0.5 h / 0 °C
3.2: 4 h / 0 - 20 °C
3.3: 20 °C
4.1: trifluoroacetic acid / dichloromethane / 0.75 h / 0 - 60 °C
4.2: 0 °C
5.1: sodium dithionite / tetrahydrofuran; water / 1 h / 20 °C
6.1: tert.-butylnitrite; copper dichloride / acetonitrile / 0.25 h / 50 °C
With
2,4,6-trimethyl-pyridine; tert.-butylnitrite; sodium dithionite; sodium hydride; trifluoroacetic acid; copper dichloride; lithium iodide;
In
tetrahydrofuran; dichloromethane; water; acetonitrile; mineral oil;