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Chemical Structure| 1519-46-6 Chemical Structure| 1519-46-6

Structure of 1519-46-6

Chemical Structure| 1519-46-6

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Product Details of [ 1519-46-6 ]

CAS No. :1519-46-6
Formula : C44H38Br2P2
M.W : 788.53
SMILES Code : C1(C[P+](C2=CC=CC=C2)(C3=CC=CC=C3)C4=CC=CC=C4)=CC=CC=C1C[P+](C5=CC=CC=C5)(C6=CC=CC=C6)C7=CC=CC=C7.[Br-].[Br-]
MDL No. :MFCD00044843
InChI Key :MXCBXCYGWQAOSN-UHFFFAOYSA-L
Pubchem ID :2753326

Safety of [ 1519-46-6 ]

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

Application In Synthesis of [ 1519-46-6 ]

* 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 [ 1519-46-6 ]

[ 1519-46-6 ] Synthesis Path-Downstream   1~1

  • 1
  • [ 50-00-0 ]
  • [ 118994-86-8 ]
  • [ 1519-46-6 ]
  • trans-5-[2-(2-vinylphenyl)ethenyl]oxazole [ No CAS ]
  • cis-5-[2-(2-vinylphenyl)ethenyl]oxazole [ No CAS ]
YieldReaction ConditionsOperation in experiment
General procedure: by Wittigreaction: To a stirred solution of diphosphonium salt of ,?-o-xylenedibromide (4.6 g, 6 mmol) inabsolute ethanol (100 ml, kept on 3 A sieves) simultaneously was added dropwise a solution ofoxazole-4/5-carbaldehyde (3, 4) (0.58 g, 6 mmol) in 4 mL of ethanol and half of a solution ofsodium ethoxide (0.31 g Na, 13 mmol, 2.2 equiv in 30 mL of ethanol) in strictly anhydrous conditions under nitrogen. Reaction mixture was left to stir for 20 minutes. Under the stream of drynitrogen, gaseous formaldehyde (obtained by decomposition of paraformaldehyde taken in excess,1.0 g) was introduced together with the second quantity of sodium ethoxide that was addeddropwise. Reaction mixture was left to stir for 2 more hours. After removal of the solvent theresidue was worked up with ice-water, and extracted with benzene (6 × 20 mL). Benzene extractswere dried over anhydrous MgSO4. Evaporation of solvent under reduced pressure afforded thecrude product. Column chromatography on silica gel using petroleum ether/ether (variable ratio) aseluent afforded a mixture of cis and trans isomers, cis/trans-1 and cis/trans-2, respectively. Theisomers were separated by repeated column chromatography on silica gel.
 

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