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Chemical Structure| 926-61-4 Chemical Structure| 926-61-4
Chemical Structure| 926-61-4

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CAS No. :926-61-4
Formula : C3H4O3
M.W : 88.06
SMILES Code : O=C(O)CC=O
MDL No. :MFCD00069858

Safety

GHS Pictogram:
Signal Word:Warning
Hazard Statements:H302-H315-H319-H335
Precautionary Statements:P261-P301+P312-P302+P352-P304+P340-P305+P351+P338

Application In Synthesis

* 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 [ 926-61-4 ]

[ 926-61-4 ] Synthesis Path-Downstream   1~1

  • 1
  • [ 926-61-4 ]
  • [ 486460-21-3 ]
  • C9H9F3N4O2 [ No CAS ]
YieldReaction ConditionsOperation in experiment
75.3% 44.0 g (0.50 mol, 1.0 eq) of 3-oxopropionic acid was dissolved in 220 g of dichloromethane solution, and N,N-dimethylformamide 0.36 g (0.021 mol, 0.01 eq) was added, and the chloride was added dropwise. Sulfuric acid 62.5g (0.525mol, 1.05eq), dripped, heated to backThe reaction was carried out for 6 hours, and the reaction of the raw material in the GC was completed. The temperature was lowered to 20 C or lower, 75.9 g (0.75 mol, 1.5 eq) of triethylamine was added dropwise, the temperature was lowered to 0 to 5 C, and 3-(trifluoromethyl)-5 was added. 1,7,8-Tetrahydro-[1,2,4]triazolo[4,3-a]pyrazine hydrochloride 114.3 g (0.50 mol, 1 eq), stirred at room temperature for 2 hours, added 60 mL of water, The layer was extracted with methylene chloride (60 g×2), and the organic layer was combined and evaporated to dryness to give a crude product, which was recrystallized from a mixture of acetone/heptane 1:3 to obtain 98.6 g of compound (III).The yield was 75.3%, and the HPLC purity was 98.6%.
 

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