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Chemical Structure| 52287-51-1 Chemical Structure| 52287-51-1
Chemical Structure| 52287-51-1

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Product Details of 6-Bromo-2,3-dihydrobenzo[b][1,4]dioxine

CAS No. :52287-51-1
Formula : C8H7BrO2
M.W : 215.04
SMILES Code : BrC1=CC=C2OCCOC2=C1
MDL No. :MFCD00040750
InChI Key :LFCURAJBHDNUNG-UHFFFAOYSA-N
Pubchem ID :104141

Safety of 6-Bromo-2,3-dihydrobenzo[b][1,4]dioxine

GHS Pictogram:
Signal Word:Warning
Hazard Statements:H302-H315-H319-H332-H335
Precautionary Statements:P261-P280-P305+P351+P338

Application In Synthesis of 6-Bromo-2,3-dihydrobenzo[b][1,4]dioxine

* 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 [ 52287-51-1 ]

[ 52287-51-1 ] Synthesis Path-Downstream   1~1

  • 1
  • [ 3282-99-3 ]
  • [ 52287-51-1 ]
  • C50H46N2O8 [ No CAS ]
YieldReaction ConditionsOperation in experiment
82.1% With (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride; DPEphos; sodium t-butanolate; In toluene; at 100 - 108℃; for 8h;Inert atmosphere; The reaction route is as follows:250mL three-necked flask was added 2.66g (0.01mol)1,1-bis (4-aminophenyl) cyclohexane,9.66 g (0.045 mol) of Intermediate 1 (prepared by Example VII),4.80 g (0.05 mol) sodium tert-butoxide,53.2 g toluene.Nitrogen gas protection 0.281 g (4.0 × 10 -4 mol) of Pd (dppf) Cl 2,0.430 g (8.0 × 10 -4 mol) DPEphos,The temperature was raised to 100 C to 108 C and refluxed for 8 hours.Completed the reaction,Add 50g water twice,Dried over anhydrous sodium sulfate,The solvent was removed under reduced pressure to give a tan solid.The above crude product was treated with THF,Toluene (mass ratio of 0.5: 5) recrystallization,Got 6.6g light yellow powder,Yield: 82.1%.
 

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