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Chemical Structure| 736-40-3 Chemical Structure| 736-40-3

Structure of 736-40-3

Chemical Structure| 736-40-3

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Product Details of [ 736-40-3 ]

CAS No. :736-40-3
Formula : C16H15NO3
M.W : 269.30
SMILES Code : O=C(OCC)C1=CC=C(NC(C2=CC=CC=C2)=O)C=C1
MDL No. :MFCD00026828

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Application In Synthesis of [ 736-40-3 ]

* 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 [ 736-40-3 ]

[ 736-40-3 ] Synthesis Path-Downstream   1~1

  • 1
  • [ 736-40-3 ]
  • [ 582-80-9 ]
YieldReaction ConditionsOperation in experiment
With methanol; sodium hydroxide; In tetrahydrofuran; at 20℃; for 2h; A suspension of 10j(0.14g,0.57mmol), 3-nitro-4-(2-(phenylthio)ethylamino) benzenesulfonamide 7 (0.2g,0.57mmol, DMAP (0.034g,0.285mmol) and EDCI 0.24g,1.14mmol in 10mL CH2Cl2 were stirred for 3 h. The reaction mixture was diluted with 100mL CH2Cl2. The organic phase was washed sequentially with1M HCl, saturated aqueous NaHCO3 and brine, dried over MgSO4, filtered and concentrated. The crude reaction mixture was purified by gel chromatography and yielded 11j (2g, 90percent).Yellow solid , total yield :21.57percent,mp 162164°C; 1H NMR (DMSO, 500 MHz, delta): 3.27-3.29 (t,2H, J=6.5Hz ,S-CH2), 3.60-3.69 (t,2H, J=6.5Hz , N-CH2), 7.17-7.56 (m,9H, Ar-H), 7.89-7.95 (m,7H, Ar-H), 8.62 (s , 1H , Ar-H ), 8.79 (m ,1H , NH ),10.54 (s, 1H, ArNHCO),12.34 (s,1H, SO2NHCO ) ;ESI-MS m/z575.98 (M-H)-
With water; sodium hydroxide; In methanol; at 20℃; for 2h; The product of Example 10, Step 1, was placed in 200 mL of methanol,To this was added 1 N aqueous NaOH (110 mL, 110 mmol)Stir at room temperature for 2 hours.Steamed methanol,The aqueous phase was extracted with 200 mL of ethyl acetate,Repeat twice.The pH of the remaining aqueous phase was adjusted to 2-3 with 2N hydrochloric acid.Extracted with ethyl acetate (300 mL x 3).Combine organic phase,And dried over anhydrous sodium sulfate for 2 hours.filter,Filter out desiccant,The filtrate was evaporated to dryness under a rotary evaporator,Get class white solid,The resulting product was purified,Directly for the next step reaction.
With water; sodium hydroxide; In methanol; at 20℃; for 2h; The product of Example 13, Step 1, was placed in 200 mL of methanol,To this was added 1 N aqueous NaOH (110 mL, 110 mmol)Stir at room temperature for 2 hours.The methanol was evaporated to dryness and the aqueous phase was extracted with 200 mL of ethyl acetate and repeated twice.The pH of the remaining aqueous phase was adjusted to 2-3 with 2N hydrochloric acid.Extracted with ethyl acetate (300 mL x 3).The organic phases were combined and dried over anhydrous sodium sulfate for 2 hours.Filtering and filtering the desiccant, the filtrate is evaporated to dryness by rotary evaporator,The resulting product was purified as a white solid and the product was used directly in the next step.
With water; sodium hydroxide; In methanol; at 20℃; for 2h; The product of Example 13, Step 1, was placed in 200 mL of methanol,To this was added 1 N aqueous NaOH (110 mL, 110 mmol)Stir at room temperature for 2 hours.Methanol was evaporated to dryness,The aqueous phase was extracted with 200 mL of ethyl acetate,Repeat twice.The pH of the remaining aqueous phase was adjusted to 2-3 with 2N hydrochloric acid.Extracted with ethyl acetate (300 mL x 3).Combine organic phase,And dried over anhydrous sodium sulfate for 2 hours.filter,Filter out desiccant,The filtrate was evaporated to dryness under a rotary evaporator,Get class white solid,The resulting product was purified,Directly for the next step reaction.
With water; sodium hydroxide; In methanol; at 20℃; for 2h; The product obtained in Example 1, Step 1, was placed in 200 mL of methanol,To this was added 1 N NaOH aqueous solution (110 mL, 110 mmol)Stir at room temperature for 2 hours. The methanol was evaporated to dryness and the aqueous phase was extracted with 200 mL of ethyl acetateRepeat twice. The pH of the remaining aqueous phase was adjusted to 2-3 with 2N hydrochloric acid.Extracted with ethyl acetate (300 mL x 3). Combined organic phase,And dried over anhydrous sodium sulfate for 2 hours. Filter, filter desiccant,The filtrate was evaporated to dryness under reduced pressure on a rotary evaporator to give an off-white solid,The resulting product was used directly in the next step without purification.

 

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