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[ CAS No. 216394-05-7 ] {[proInfo.proName]}

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Chemical Structure| 216394-05-7
Chemical Structure| 216394-05-7
Structure of 216394-05-7 * Storage: {[proInfo.prStorage]}
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Product Details of [ 216394-05-7 ]

CAS No. :216394-05-7 MDL No. :MFCD01318107
Formula : C5H2BrCl2NO2S Boiling Point : -
Linear Structure Formula :- InChI Key :TURGMVYIESHZBE-UHFFFAOYSA-N
M.W : 290.95 Pubchem ID :2793626
Synonyms :

Safety of [ 216394-05-7 ]

Signal Word:Danger Class:8
Precautionary Statements:P303+P361+P353-P210-P402+P404-P501-P260-P301+P330+P331-P305+P351+P338 UN#:3261
Hazard Statements:H302-H314 Packing Group:
GHS Pictogram:

Application In Synthesis of [ 216394-05-7 ]

* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.

  • Downstream synthetic route of [ 216394-05-7 ]

[ 216394-05-7 ] Synthesis Path-Downstream   1~9

  • 1
  • [ 134003-84-2 ]
  • [ 216394-05-7 ]
  • [ 1001407-42-6 ]
  • 2
  • [ 70125-16-5 ]
  • [ 216394-05-7 ]
  • [ 1146771-34-7 ]
  • 3
  • [ 247582-62-3 ]
  • [ 216394-05-7 ]
YieldReaction ConditionsOperation in experiment
100% Stage #1: 2-Amino-3-bromopyridine-5-sulphonic Acid With hydrogenchloride; sodium nitrite In water at 0℃; for 1h; Stage #2: With phosphorus pentachloride; trichlorophosphate at 75 - 125℃; 199.1 A cooled (0 0C) solution of θ-amino-S-bromopyridine-S-sulfonic acid (12.65 g; 50.00 mmol) in HCI (60 ml; 5 N solution in water) was treated carefully with a solution of sodium nitrite (3.80 g; 55.0 mmol) in water (15 ml) and stirred at 0 0C for 1 hour. The solvents were evaporated and the residue was dried under high vacuum for 2 days, then treated with phosphorus pentachloride (15.00 g; 72 mmol) and phosphorus oxide chloride (0.50 ml; 5.5 mmol). The solid mixture was heated at 125 0C to give a refluxing solution. After heating at 75 0C for 3 hours, the solution was cooled and carefully poured on crushed ice. EtOAc was added and the phases separated. The organic phase was washed with brine, dried on MgSO4, filtered and concentrated under reduced pressure to give the title compound as a brown oil (14.91 g, quantitative yield), which was used without purification.
100% Stage #1: 2-Amino-3-bromopyridine-5-sulphonic Acid With hydrogenchloride; sodium nitrite In water at 0℃; for 1h; Stage #2: With phosphorus pentachloride In trichlorophosphate at 75℃; for 3h;
26.58 g Stage #1: 2-Amino-3-bromopyridine-5-sulphonic Acid With hydrogenchloride; sodium nitrite In water at 0 - 25℃; for 1.5h; Cooling with ice; Stage #2: With phosphorus pentachloride; trichlorophosphate at 125℃; for 3h; 5.1. Pyridine 2-ethoxy-5-(4-ethylpiperazin-1-ylsulphonyl)-3-carboxylic acid (3a) (iii) A solution of sodium nitrite (7.6 g, 110.0 mmol) in water (30 mL) was added dropwise to an ice-cooled solution of the bromo sulphonic acid (25.3 g, 100.0 mmol) in 20% aqueous hydrochloric acid (115 mL), so as to maintain the temperature below 6 °C. The reaction was stirred for 30 min at 0 °C and for a further 1 h at room temperature. The reaction mixture was evaporated under reduced pressure and the residue dried under vacuum at 70 °C for 72 h. A mixture of this solid, phosphorus pentachloride (30.0 g, 144.0 mmol) and phosphorus oxychloride (1 mL, 10.8 mmol) was heated at 125 °C for 3 h, and then cooled. The reaction mixture was poured onto ice (100 g) and the resulting solid filtered, and washed with water. The product was dissolved in dichloromethane, dried (MgSO4), and evaporated under reduced pressure to afford pyridine-3-bromo-2-chloro-5-sulphonyl chloride as a yellow solid (26.58 g). 1H NMR (CDCl3) δ: 8.46 (s, 1H), 8.92 (s, 1H).
  • 4
  • [ 16250-08-1 ]
  • [ 216394-05-7 ]
  • 5
  • [ 808770-39-0 ]
  • [ 216394-05-7 ]
  • 5-bromo-6-chloro-N-(6-chloro-4-methoxypyridazin-3-yl)pyridine-3-sulfonamide [ No CAS ]
YieldReaction ConditionsOperation in experiment
13% Stage #1: 6-chloro-4-methoxypyridazin-3-amine With sodium hydride In 1,2-dimethoxyethane for 0.0833333h; Stage #2: 5-bromo-6-chloropyridine-3-sulfonyl chloride In 1,2-dimethoxyethane for 1h; 5-bromo-6-chloro-N-(6-chloro-4-methoxypyridazin-3-yl)pyridine-3-sulfonamide Toa suspension of 6-chloro-4-methoxypyridazin-3-amine (3.00g, 18.8 mmol) in drydimethoxyethane (60 mL) was added sodium hydride (752 mg, 60%, 18.8 mmol) andthe mixture stirred 5 mins. 5-bromo-6-chloropyridine-3-sulfonyl chloride (4.92g, 16.9 mmol) was then added and the mixture stirred 1 hr. EtOAc was added (100mL) followed by water (15 mL) and the phases were separated. The aqueous phasewas then acidified (1M HC1) resulting in a white emulsion. More EtOAc (50 mL)was added.The phases were separated and the organic phase was washed with brine(15 mL), dried ( a2S04), the mixture filtered and thefiltrate evaporated to dryness to afford an off white solid containing thetitle compound (1.03g, 13%); m/z=412.7, 414.7 (MH)+.
  • 6
  • [ 33631-09-3 ]
  • [ 216394-05-7 ]
  • 5-bromo-6-chloro-N-(4-hydroxypyridin-3-yl)pyridine-3-sulfonamide [ No CAS ]
YieldReaction ConditionsOperation in experiment
19% A mixture of <strong>[33631-09-3]3-amino-4-methoxypyridine</strong> (124 mg, 1.0 mmol) and 5-bromo-6-chloro- pyridine-3-sulfonyl chloride (291 mg, 1.0 mmol) was heated at 130C for 2 h. 2M HC1 in EtOH (200 mu) was added to the warm mixture to complete hydrolysis of the methoxy group and heated at 130C for one additional hour. The mixture was allowed to cool to 60C and MeOH (2 mL) was added. After stirring for 0.5 h at 60C, the decanted solution was allowed to pass through an NH2-column, eluted with acetone/MeOH (1 :0 to 1 : 1) and fractions containing product were evaporated. The residue was chromato graphed on silica (EtOAc/(MeOH/HOAc/H20 3:3 :2) 40:1 , 20:1 , 10:1), evaporated and dried in vacuum to afford 5-bromo-6-chloro-N-(4-hydroxypyridin-3-yl)pyridine-3-sulfonamide (70 mg, 19%).
  • 7
  • [ 101084-20-2 ]
  • [ 216394-05-7 ]
  • 5-bromo-N-(5-bromo-4-hydroxypyridin-3-yl)-6-methoxypyridine-3-sulfonamide [ No CAS ]
  • 8
  • [ 101084-20-2 ]
  • [ 216394-05-7 ]
  • C10H6Br2ClN3O3S [ No CAS ]
YieldReaction ConditionsOperation in experiment
To a solution of <strong>[101084-20-2]3-amino-5-bromopyridin-4-ol</strong> (250 mg, 0.926 mmol) in pyridine (3 mL) at 80C was added a crystal of DMAP, and the solution stirred at this temperature for 10 min. Then 5-bromo-6-chloropyridine-3-sulfonyl chloride (269 mg, 0.926 mmol) was added in portions over 3 min. The mixture was stirred for 1 hr at this temperature then the pyridine was evaporated. The residue was suspended in MeOH (10 mL), methanolic sodium methoxide solution added via syringe (5.4M, 1.2 mL, 6.5 mmol) and the mixture heated at 75C for 3h. The solvent was evaporated and the residue acidified with 0.5M HC1. EtOAc (50 mL) was added, the phases were separated and the organic phase was washed with brine (20 mL), dried (Na2SC>4), the mixture filtered and the filtrate evaporated to dryness to afford a red solid which was purified by automated reverse- phase HPLC (low pH method) to afford the title compound as a pink solid (10 mg, 2%).
  • 9
  • [ 216394-05-7 ]
  • [ 1196153-82-8 ]
  • [ 1638200-93-7 ]
YieldReaction ConditionsOperation in experiment
12% With pyridine; dmap at 0 - 20℃; for 1h; 128 5-bromo-6-chloro-N-[4-hydroxy-6-(trifluoromethyl)pyridiii-3-yl]pyridine-3- sulfonamide To a stirred solution of 5-amino-2-(trifiuoromethyl)pyridin-4-ol (130 mg, 0.73 mmol) and N,N-dimethylpyridin-4-amine (4.4 mg, 0.036 mmol) in pyridine (1.5 mL) at 0°C was added 5-bromo-6-chloropyridine-3-sulfonyl chloride (220 mg, 0.759 mmol). The reaction mixture was stirred at room temperture for 1 hr. More 5-bromo-6-chloropyridine-3- sulfonyl chloride (26 mg, 0.091 mmol) was added and stirring continued for a further 1 hr. The pH was adjusted to 3 with 1 M HC1, the mixture extracted with EtOAc (3x 1 OmL) and the organics combined, dried (MgSC^), filtered and the filtrate concentrated to dryness. The crude material was purified by automated reverse phase HPLC (low pH method) to yield the title compound as an off white solid (36 mg, 12%).
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