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Chemical Structure| 58928-28-2 Chemical Structure| 58928-28-2

Structure of 58928-28-2

Chemical Structure| 58928-28-2

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Product Details of [ 58928-28-2 ]

CAS No. :58928-28-2
Formula : C4H5F3O
M.W : 126.08
SMILES Code : O=CC(C)C(F)(F)F
MDL No. :MFCD00042425

Safety of [ 58928-28-2 ]

GHS Pictogram:
Signal Word:Danger
Hazard Statements:H301
Precautionary Statements:P261-P280-P301+P312-P302+P352-P305+P351+P338
Class:6.1
UN#:2810
Packing Group:

Application In Synthesis of [ 58928-28-2 ]

* 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 [ 58928-28-2 ]

[ 58928-28-2 ] Synthesis Path-Downstream   1~1

  • 1
  • [ 58928-28-2 ]
  • [ 62327-21-3 ]
  • [ 1584139-41-2 ]
YieldReaction ConditionsOperation in experiment
40.6% [00167] A solution oftert-butyl2-(dimethoxyphosphoryl)acetate (9.78 g, 43.6 mmol)in THF (10 mL) was slowly transferred to a suspension ofNaH (60percent dispersion inmineral oil) (1.903 g, 47.6 mmol) in THF (30 mL) at 0 oc under a nitrogen atmosphere.20 After the addition was complete, the reaction mixture was stirred at 0 oc for 1 Omin, andthen warmed to room temperature. After being stirred for 30 min, the reaction mixturewas cooled to 0 oc again, and a solution of3,3,3-trifluoro-2-methylpropanal (5 g, 39.7mmol) in THF (10 mL) was added, and the ice bath was removed. After 12 hat 25 °C,the mixture was partitioned between water ( 60 mL) and EtOAc ( 60 mL ). The aqueous25 layer was extracted with EtOAc ( 60 mL ), and the combined organic layers were successively washed with water ( 60 mL) and brine. The resulting solution was dried overMgS04, concentration under reduced pressure, and purified by silica gel flashchromatography (330g column, 0percent to 15percent EtOAc in hexane over 20 min) to obtainIntermediate S-5A (3.61 g, 16.10 mmol, 40.6percent yield). 1H NMR (400MHz, chloroform-d)5 8 6.77 (dd, J=15.8, 7.7 Hz, 1H), 5.95 (dd, J=15.7, 0.6 Hz, 1H), 3.12-2.93 (m, 1H), 1.56-1.47 (m, 9H), 1.37-1.27 (m, 3H).
 

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