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Chemical Structure| 728911-52-2 Chemical Structure| 728911-52-2

Structure of 728911-52-2

Chemical Structure| 728911-52-2

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Product Details of [ 728911-52-2 ]

CAS No. :728911-52-2
Formula : C37H38B2O4
M.W : 568.32
SMILES Code : CC1(C)C(C)(C)OB(C2=CC3=C(C=C2)C4=C(C=C(B5OC(C)(C)C(C)(C)O5)C=C4)C36C7=C(C8=C6C=CC=C8)C=CC=C7)O1
InChI Key :GKPGYJFGTIZCRP-UHFFFAOYSA-N
Pubchem ID :20769414

Safety of [ 728911-52-2 ]

GHS Pictogram:
Signal Word:Warning
Hazard Statements:H302-H312-H332
Precautionary Statements:P261-P264-P270-P271-P280-P301+P312-P302+P352-P304+P340-P330-P363-P501

Application In Synthesis of [ 728911-52-2 ]

* 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 [ 728911-52-2 ]

[ 728911-52-2 ] Synthesis Path-Downstream   1~3

  • 1
  • [ 61676-62-8 ]
  • [ 171408-84-7 ]
  • [ 728911-52-2 ]
  • 2
  • [ 73183-34-3 ]
  • [ 171408-84-7 ]
  • [ 728911-52-2 ]
YieldReaction ConditionsOperation in experiment
With (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride; potassium acetate; In 1,2-dimethoxyethane; for 5h;Inert atmosphere; Reflux; Stirrer, condenser, and a thermometer in a glass reactor equipped with a 2,7-bromo-9,9'-spirobifluorene 180.0g (0.379mol), 1,1'- bis (diphenylphosphino) ferrocene) dichloro palladium (PdCl2dppf) 8.50g (0.0121mol), bis (Pinakorato) diboron 242.5g (0.95mol), potassium acetate 230.10g (2.34mol) and was charged with dimethyl glycol 900g, under a stream of nitrogen, to reflux it takes the temperature was raised, and the mixture was stirred for 5 hours under reflux.After the stirring, the reaction product was removed concentrated dimethyl glycol, toluene 3650g in the reactor, activated carbon 45 g, of deionized water 180g was added, then the temperature was raised to 80 C., and stirred for 1 hour at the same temperature.After stirring, to remove the activated carbon by heat filtration, and the resulting After the solution was to remove the stand and the aqueous layer at 75 , further added to the ion exchange water 550g at 75 , and again allowed to stand after stirring at 75 water layer It was removed.Then, the activated carbon 180g added to the organic layer, after which the temperature was raised to 80 , and the mixture was stirred at the same temperature for 1 hour.After stirring, after removing the active carbon by hot filtration, the solvent was concentrated and the resulting organic layer was removed.Adding acetonitrile 1634.1g the resulting concentrate, after stirring at room temperature, filtered off crystals, and an object by drying 2,7-di (4,5,5,5-tetramethyl-1,3 , 2-dioxaborolane) 9,9'-white crystals 219.4g (89.4% yield of spirobifluorene to obtain a HPLC purity 88%).
  • 3
  • 4,4,5,5-tetramethyl-2-(4,4,5,5-tetramethyl-1,3-dioxolan-2-yl)-1,3,2-dioxaborolane [ No CAS ]
  • [ 171408-84-7 ]
  • [ 728911-52-2 ]
 

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