Antioxidant BHT 264
CAS:128-37-0
Purity:99%
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Product Details
The invention relates to cycloalkyl-subs...
C23H20Cl2FN5O5S2

![4-[2-(5-amino-1H-pyrazol-4-yl)-4-chlorophenoxy]-5-chloro-2-fluoro-N-(1,3-thiazol-4-yl)benzenesulfonamide](/upload/2023/11/5b08af44-3827-429c-896b-73a8589f8598.png)
4-[2-(5-amino-1H-pyrazol-4-yl)-4-chlorophenoxy]-5-chloro-2-fluoro-N-(1,3-thiazol-4-yl)benzenesulfonamide
| Conditions | Yield | 
|---|---|
| 
			 With    trifluoroacetic acid;     In   dichloromethane;   at 20 - 25 ℃; for 24h; Inert atmosphere;  
			 | 
			31% | 

5-chloro-2,4-difluorobenzene-1-sulfonyl chloride

![4-[2-(5-amino-1H-pyrazol-4-yl)-4-chlorophenoxy]-5-chloro-2-fluoro-N-(1,3-thiazol-4-yl)benzenesulfonamide](/upload/2023/11/5b08af44-3827-429c-896b-73a8589f8598.png)
4-[2-(5-amino-1H-pyrazol-4-yl)-4-chlorophenoxy]-5-chloro-2-fluoro-N-(1,3-thiazol-4-yl)benzenesulfonamide
| Conditions | Yield | 
|---|---|
| 
			 Multi-step reaction with 3 steps  
			1.1: lithium hexamethyldisilazane / tetrahydrofuran / 1.5 h / -78 - 25 °C / Inert atmosphere 
			1.2: 17 h / -78 - 25 °C 
			2.1: potassium carbonate / N,N-dimethyl-formamide / 18 h / 40 °C / Inert atmosphere 
			3.1: trifluoroacetic acid / dichloromethane / 24 h / 20 - 25 °C / Inert atmosphere 
			With    potassium carbonate; trifluoroacetic acid; lithium hexamethyldisilazane;     In   tetrahydrofuran; dichloromethane; N,N-dimethyl-formamide;    
			 | 
			

5-chloro-2,4-difluorobenzene-1-sulfonyl chloride

methyl 5-chloro-2-methoxybenzoate

(5-chloro-2-methoxyphenyl)methanol

(5-chloro-2-methoxy-phenyl)-acetonitrile

4-[2-(5-amino-1H-pyrazol-4-yl)-4-chlorophenoxy]-5-chloro-2-fluoro-N-(1,3-thiazol-4-yl)benzenesulfonamide tosylate