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Chemical Structure| 40125-73-3 Chemical Structure| 40125-73-3

Structure of 40125-73-3

Chemical Structure| 40125-73-3

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Product Details of [ 40125-73-3 ]

CAS No. :40125-73-3
Formula : C8H7ClO4S
M.W : 234.66
SMILES Code : O=C(Cl)C(S(=O)(O)=O)C1=CC=CC=C1

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Application In Synthesis of [ 40125-73-3 ]

* 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 [ 40125-73-3 ]

[ 40125-73-3 ] Synthesis Path-Downstream   1~1

  • 1
  • [ 41360-32-1 ]
  • [ 40125-73-3 ]
YieldReaction ConditionsOperation in experiment
91.83% With bis(trichloromethyl) carbonate; N,N-dimethyl-formamide; In 1,2-dichloro-ethane; at 5 - 20℃; for 1h; A solution of D (-) - sulfophenylacetyl chloride in dichloroethane was prepared in the same manner as in Example 1 (1) except that the amount of BTC / C2H4Cl2 solution and solvent dichloroethane was used, that of BTC / C2H4Cl2 solution Dropping temperature, reaction time, the experimental results shown in Table 1
81% With thionyl chloride; N-ethyl-N,N-diisopropylamine; In diethyl ether; at -2 - 25℃; for 1.5h; (1) 52.4 g of alpha-<strong>[41360-32-1]sulfophenylacetic acid</strong> was stirred and dissolved in 100 mL of diethyl ether.115 mL of thionyl chloride was added dropwise at -2 °C.2.0 ml of N,N-diisopropylethylamine was added dropwise.The reaction was then stirred at a temperature of 25 ° C for 1.5 hours.After the reaction is completed, the mixture is distilled to dryness under reduced pressure.The residue after distillation was washed twice with diethyl ether.Then, it was distilled to dryness under reduced pressure to obtain 58.1 g of alpha-sulfophenylacetyl chloride.Yield 81.0percent;
A solution of Compound 6 (238 mg, 1.1 mmol) in methylene chloride (10 ml) was cooled to 0° C. Diisopropylethylamine (480 mul, 2.75 mmol) followed by trimethylchlorosilane (422 mul, 3.3 mmol) were added, and then stirred at room temperature for 2 hours. After the reaction mixture was cooled to ?30° C., thionyl chloride (96 mul, 1.32 mmol) was added thereto, and then stirred at 0° C. for 1 hour to form a solution of the acid chloride. Meanwhile, Compound 2 (1.07 g, 1.0 mmol) was dissolved in methylene chloride (10 ml), and then cooled to ?60° C. Subsequently, tributylamine (951 mul, 4.0 mmol) was added thereto. To the resulting mixed solution, the above-described solution of the acid chloride was added dropwise over 30 minutes. After stirring at 0° C. for 1 hour, 0.5 mol/L hydrochloric acid was added to the reaction mixture, followed by extraction with methylene chloride. The organic layer was washed with 0.2 mol/L hydrochloric acid, aqueous sodium hydrogen sulfite solution, then saturated brine, and then dried with anhydrous magnesium sulfate. After removing the insoluble material through filtration, the filtrate was concentrated in vacuo, and then dried under reduced pressure to yield Compound 7 as a brown foam solid.
With thionyl chloride; In diethyl ether; at 20℃; for 2h; Under stirring at room temperature, to the alpha-<strong>[41360-32-1]sulfophenylacetic acid</strong> obtained in the step (3), 80 ml of diethyl ether and 176ml thionyl chloride, stirred at room temperature for 2h until uniform, 0.4ml catalyst DMF was added, heated to 42 ~ 43.5 ° C, stirred to carry out chlorosulfonylation reaction for 3.5 ~ 4h, the ether and excess thionyl chloride was evaporated under reduced pressure; (5) Sulfophenylacetyl chloride extraction: To the reaction mixture obtained in step (4), 360 ml of diethyl ether and n-hexane mixed in a volume ratio of 1: 1 were added in three portions, Sulfo phenylacetyl chloride crude was stirred, concentrated under reduced pressure, cooled and crystallized, filtered, evaporated to dryness , to give yellowish Sulfo phenylacetyl chloride; Where in, The cooling crystallization method is: First naturally cooled to room temperature, and then cooled to 0 ~ 5 ° C at a cooling rate of 5 ~ 10 ° C / min, the temperature was maintained for and then cooled to -15 ~ -20 ° C at a cooling rate of 3 ~ 5 ° C / min, the temperature was maintained for 20 ~ 30min, and finally cooled to -40 at a cooling rate of 1 ~ 3 ° C / min ° C, constant temperature to maintain for 30 ~ 60min;

 

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