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Chemical Structure| 121714-18-9 Chemical Structure| 121714-18-9

Structure of 121714-18-9

Chemical Structure| 121714-18-9

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Product Details of [ 121714-18-9 ]

CAS No. :121714-18-9
Formula : C25H36O4Si2
M.W : 456.72
SMILES Code : O=C1C2=C(OC3=C1C=CC(O[Si](C)(C(C)(C)C)C)=C3)C=C(O[Si](C)(C(C)(C)C)C)C=C2
MDL No. :MFCD06410747

Safety of [ 121714-18-9 ]

GHS Pictogram:
Signal Word:Warning
Hazard Statements:H315-H319
Precautionary Statements:P264-P280-P302+P352-P337+P313-P305+P351+P338-P362+P364-P332+P313

Application In Synthesis of [ 121714-18-9 ]

* 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 [ 121714-18-9 ]

[ 121714-18-9 ] Synthesis Path-Downstream   1~1

  • 1
  • [ 769-26-6 ]
  • [ 121714-18-9 ]
  • [ 1415344-19-2 ]
YieldReaction ConditionsOperation in experiment
68% EXAMPLE 2 9-(2,4,6-trimethylphenyl)-3,6-dihydroxyxanthene (1b). Mesitylacetylene (288 mg, 2 mmol) was dissolved in dry toluene (4 mL) under argon. Butyllithium (700 μL of 2.5 M solution in hexanes, 1.4 mmol) was slowly added via syringe during vigorous stirring. The mixture was stirred for 20 min at room temperature, and then added to a solution of 3,6-bis(dimethyl-tert-butylsilyloxy)xanth-9-one (456 mg, 1 mmol) in toluene (4 mL). The reaction was stirred for 4 hours at 60 C., cooled, and evaporated in vacuum. The residue was dissolved in THF (6 mL), and triethylamine trihydrofluoride (2454, 1.5 mmol) was added. The mixture was stirred for 30 minutes, and evaporated. The residue was dissolved in CHCl3-MeOH (10:1), and subjected to column chromatography on silica gel (eluent 10% MeOH and 1% AcOH in CHCl3 to 10% AcOH and 40% MeOH in CHCl3). Fractions containing title compound were pooled, and evaporated. The residue was co-evaporated with ether (2*50 mL), and dried in vacuum to give 240 mg (68%) of pure title compound as black crystalls. Rf 0.21 (15% MeOH in CHCl3).
 

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