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Chemistry
Heterocyclic Building Blocks
Dioxoles
4,5-Diphenyl-1,3-dioxol-2-one
Chemistry
Heterocyclic Building Blocks
Organic Building Blocks
Dioxoles
Aryls Esters Aliphatic Heterocycles

[ CAS No. 21240-34-6 ] {[proInfo.proName]}

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Cat. No.: {[proInfo.prAm]}
Chemical Structure| 21240-34-6
Chemical Structure| 21240-34-6
Structure of 21240-34-6 * Storage: {[proInfo.prStorage]}
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SDS Specification
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Product Details of [ 21240-34-6 ]

CAS No. :21240-34-6 MDL No. :MFCD00005381
Formula : C15H10O3 Boiling Point : -
Linear Structure Formula :- InChI Key :-
M.W : 238.24 Pubchem ID :-
Synonyms :

Safety of [ 21240-34-6 ]

Signal Word:Warning Class:N/A
Precautionary Statements:P261-P305+P351+P338 UN#:N/A
Hazard Statements:H302-H315-H319-H335 Packing Group:N/A
GHS Pictogram:

Application In Synthesis of [ 21240-34-6 ]

* 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 [ 21240-34-6 ]

[ 21240-34-6 ] Synthesis Path-Downstream   1~3

  • 1
  • [ 21240-34-6 ]
  • [ 1738-76-7 ]
  • [ 110353-69-0 ]
Reference： [1]Journal of Organic Chemistry,1987,vol. 52,p. 4804 - 4810
  • 2
  • [ 54012-73-6 ]
  • [ 21240-34-6 ]
  • C20H20N2O2 [ No CAS ]
YieldReaction ConditionsOperation in experiment
92.3% With triethylamine; In N,N-dimethyl-formamide; for 0.5h;Cooling with ice; The steps will be a 3 - amino piperidine (50.1g) soluble in the 2L of in DMF, by adding 1, 2 - diphenyl vinylidene carbonate (119.1g), triethylamine (1L), for ice water bath stirring to the reaction is complete (about 30min) after, adding ethyl acetate, the combined organic layer, dried with anhydrous sodium sulfate, to remove the organic solvent. The resulting product is dissolved in the 1L trifluoroacetic in, as for 20 C stirring for 2 hours, concentrated in vacuo, to remove the surplus trifluoro acetic acid, to obtain a product of formula Chinese (148.5g, yield 92.3%)
Reference： [1]Patent: CN103450201,2017,B .Location in patent: Paragraph 0025; 0026
  • 3
  • [ 21240-34-6 ]
  • [ 61477-39-2 ]
  • 3-[(1S)-3-hydroxy-1-methylpropyl]-4,5-diphenyloxazol-2-one [ No CAS ]
YieldReaction ConditionsOperation in experiment
59% A mixture of (S)-3-Aminobutan-1-ol (4.25 mL, 42.0 mmol) and 4,5-diphenyl-1,3- dioxol-2-one (10.0 g, 42.0 mmol) in DMF (125 mL) was allowed to stir at RT overnight. The reaction was diluted with H2O and extracted with EtOAc (X5), and the combined organic layers washed (H2O X5, brine), dried (Na2SO4) and concentrated in vacuo. The residue was treated with TFA (39.0 mL, 504 mmol) and the solution was allowed to stir for 2 hours. The solution was concentrated and the residue taken up in MeOH and treated with K2CO3(11.9 mL, 210 mmol) and the mixture was allowed to stir for 1 hour. The mixture was concentrated and the residue was diluted with H2O and extracted with EtOAc (X3), and the combined organic layers washed (H2O X2, brine), dried (Na2SO4) and concentrated in vacuo. The residue was purified by column chromatography (0 to 100percent EtOAc in hexanes) to give a colorless solid (7.60 g, 59percent).
Reference： [1]Patent: WO2019/74962,2019,A1 .Location in patent: Paragraph 0160; 0211

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