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Chemical Structure| 70728-93-7 Chemical Structure| 70728-93-7

Structure of 70728-93-7

Chemical Structure| 70728-93-7

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Product Details of [ 70728-93-7 ]

CAS No. :70728-93-7
Formula : C20H24Br2
M.W : 424.21
SMILES Code : CC(C)(C)C1=CC=C(C(Br)=C1)C1=C(Br)C=C(C=C1)C(C)(C)C
MDL No. :MFCD20921697
InChI Key :GOLHJMJCRFQWNY-UHFFFAOYSA-N
Pubchem ID :12541265

Safety of [ 70728-93-7 ]

GHS Pictogram:
Signal Word:Warning
Hazard Statements:H302
Precautionary Statements:P280-P305+P351+P338

Application In Synthesis of [ 70728-93-7 ]

* 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 [ 70728-93-7 ]

[ 70728-93-7 ] Synthesis Path-Downstream   1~6

  • 1
  • [ 1625-91-8 ]
  • [ 70728-93-7 ]
YieldReaction ConditionsOperation in experiment
78% <strong>[1625-91-8]4,4'-di-tert-butylbiphenyl</strong> (1.5 g, 5.6 mmol) and iron powder (0.08 g) were added to dry CH2Cl2(40 mL). After cooling to 0 oC temperature, Br2 FontWeight="Bold" FontSize="10" (0.58 mL, 11.2 mmol) in CH2Cl2 (10 mL) was added dropwise. Kept the mixture at 0 oC temperature for 2 h, sodium bissulfite aqueous solution was added to quench Br2. The organic layer was separated, and dried over Na2SO4.After removal of the solvent, the crude product was chromatographically purified onsilica gel eluting with petroleum ether afford 2,2-dibromo-<strong>[1625-91-8]4,4'-di-tert-butylbiphenyl</strong> 8 (2.2 g, 78percent). 1H NMR (600 MHz, CDCl3, ppm): delta 7.68 (sd, 2H), 7.39(dd, J=6.0 Hz, 2H), 7.19 (d, J=6.0 Hz, 2H), 1.38 (s, 18H). 13CNMR (150 MHz, CDCl3, ppm): delta 152.71, 139.03, 130.74, 129.52, 124.16, 123.41, 34.72,31.23.
  • 3
  • [ 70728-93-7 ]
  • [ 75-78-5 ]
  • [ 1625-91-8 ]
  • 2,7-di-tert-butyl-9,9-dimethyl-9H-9-silafluorene [ No CAS ]
  • 4
  • [ 1625-91-8 ]
  • [ 70728-89-1 ]
  • [ 70728-93-7 ]
  • 5
  • [ 70728-93-7 ]
  • 2,2',7,7'-tetra-tert-butyl-9,9'-spirobi[9H-9-silafluorene] [ No CAS ]
  • [ 121441-89-2 ]
  • [ 1625-91-8 ]
  • 6
  • [ 70728-93-7 ]
  • 2,2',7,7'-tetra-tert-butyl-9,9'-spirobi[9H-9-silafluorene] [ No CAS ]
  • [ 1625-91-8 ]
 

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