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Chemical Structure| 82419-33-8 Chemical Structure| 82419-33-8

Structure of 82419-33-8

Chemical Structure| 82419-33-8

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Product Details of [ 82419-33-8 ]

CAS No. :82419-33-8
Formula : C9H9F2NO
M.W : 185.17
SMILES Code : CC1NC2=CC=C(F)C(F)=C2OC1
MDL No. :MFCD11111442

Safety of [ 82419-33-8 ]

GHS Pictogram:
Signal Word:Warning
Hazard Statements:H302-H315-H319-H335
Precautionary Statements:P261-P264-P270-P271-P280-P301+P312-P302+P352-P304+P340-P305+P351+P338-P330-P332+P313-P337+P313-P362-P403+P233-P405-P501

Application In Synthesis of [ 82419-33-8 ]

* 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 [ 82419-33-8 ]

[ 82419-33-8 ] Synthesis Path-Downstream   1~1

  • 1
  • [ 82419-33-8 ]
  • [ 147851-69-2 ]
  • 7,8-difluoro-3,4-dihydro-3-methyl-N-(2′-phenoxypropionyl)-2H-[1,4]benzoxazine [ No CAS ]
  • [ 1129-46-0 ]
YieldReaction ConditionsOperation in experiment
76% A solution of amine (RS)-1b (0.28g, 0.15mmol) and PhNEt2 (0.22g, 1.5mmol) in toluene (20mL) was added to a solution of acyl chloride 2a (1.84g, 10mmol) [obtained from scalemic acid (R)-3, 96.5% ee] in toluene (30mL). The reaction mixture was kept at room temperature for 24h and then evaporated to dryness under reduced pressure. Acetonitrile (20mL) and saturated aqueous Na2CO3 (20mL) were added to the residue and the reaction mixture was stirred vigorously for 1h, after which acetonitrile was removed under reduced pressure, and the aqueous solution was washed with chloroform (4×15mL), acidified with 4M HCl to pH 1-2 and extracted with chloroform (4×10mL). The organic layers were washed with saturated aqueous NaCl (4×20mL), dried over MgSO4 and evaporated to dryness under reduced pressure to afford 1.26g (76%) of acid (R)-5 as a colorless solid, mp 88-90C; [α]D20=+21.1 (c 1.0, CHCl3). HPLC (Chiralpak AD, n-hexane-iPrOH-TFA 20:1:0.02): 99.6% ee. Anal. Calcd for C9H10O3: C, 65.05; H, 6.06. Found: C, 65.18; H, 6.25.
 

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