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Chemical Structure| 71904-80-8 Chemical Structure| 71904-80-8

Structure of 71904-80-8

Chemical Structure| 71904-80-8

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Product Details of [ 71904-80-8 ]

CAS No. :71904-80-8
Formula : C10H14N2O4S
M.W : 258.29
SMILES Code : O=C(C1=CSC(CNC(OC(C)(C)C)=O)=N1)O
MDL No. :MFCD10703327
InChI Key :RKTDDQLCSYDRLH-UHFFFAOYSA-N
Pubchem ID :10199046

Safety of [ 71904-80-8 ]

GHS Pictogram:
Signal Word:Warning
Hazard Statements:H315-H319-H335
Precautionary Statements:P261-P264-P271-P280-P302+P352-P304+P340-P305+P351+P338-P312-P332+P313-P337+P313-P362-P403+P233-P405-P501

Application In Synthesis of [ 71904-80-8 ]

* 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 [ 71904-80-8 ]

[ 71904-80-8 ] Synthesis Path-Downstream   1~3

  • 2
  • [ 96929-05-4 ]
  • [ 71904-80-8 ]
YieldReaction ConditionsOperation in experiment
100% With potassium hydroxide; In tetrahydrofuran; water; at 20℃; for 1h; General procedure: KOH aq. (10%) was added to a solution of the ester in THF and the reaction mixture was stirred at room temperature for 1h. The pH was brought to 4 by addition of 5M HCl and then extracted with EtOAc. The organic layer was dried over MgSO4 and concentrated in vacuo to afford the acid.
100% With water; potassium hydroxide; In tetrahydrofuran; General procedure: An aqueous KOH (10%) solution was added to an ester solution in THF. The reaction mixture was stirred at rt until reagent disappearance was confirmed by TLC. HCl 1M was added until pH 4 and the solution was extracted with EtOAc. The organic layer was dried over MgSO4 and concentrated in vacuo to afford the acid.
100% With water; lithium hydroxide; In ethanol; for 6h; Compound 25 (13.47g, 47mmol) dissolved in ethanol (100 ml), lithium hydroxide (2.256g, 94mmol) aqueous solution (50 ml), stirring 6h decompression after ethanol turns on lathe , residue diluted with water, the ice-bath using 1M hydrochloric acid the pH is adjusted to 2 the [...] 3, ethyl acetate extraction of the organic phase (150mLx3), combined with the phase, the organic phase with saturated salt water washing, dry anhydrous sodium sulfate, concentrated to obtain white solid compound 26 (12.13g, 100%).
With sodium hydroxide; In ethanol; a 2-(N-t-butoxycarbonylamino)methylthiazol-4-carboxylic acid A 20 ml portion of a 2N aqueous sodium hydroxide solution was added to 100 ml of an ethanol solution containing 5.727 g of ethyl 2-(N-t-butoxycarbonylamino)methylthiazol-4-carboxylate, and the mixture was then stirred at room temperature for 45 minutes. After adjustment to pH 5 with 2N hydrochloric acid, the solvent was evaporated under reduced pressure. Further, the solution was dissolved in 300 ml of ethanol under heating, and after the removal of a salt by filtration, the solvent was evaporated under reduced pressure to obtain 4.228 g of 2-(N-t-butoxycarbonylamino)methylthiazol-4-carboxylic acid as a milky white solid. NMR (DMSO-d6) delta: 1.41 (9H, s), 4.39 (2H, d, J=6.0 Hz), 7.86 (1H, br.t, J=6.0 Hz), 8.34 (1H, s), 13.0 (1H, br.s) MS (EI): 258 (M+)

 

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