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[ CAS No. 61292-90-8 ] {[proInfo.proName]}

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Chemical Structure| 61292-90-8
Chemical Structure| 61292-90-8
Structure of 61292-90-8 * Storage: {[proInfo.prStorage]}
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CAS No. :61292-90-8 MDL No. :MFCD00017278
Formula : C12H16O4 Boiling Point : -
Linear Structure Formula :- InChI Key :-
M.W : 224.25 Pubchem ID :-
Synonyms :

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* 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.

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[ 61292-90-8 ] Synthesis Path-Upstream   1~1

  • 1
  • [ 61292-90-8 ]
  • [ 1135-23-5 ]
YieldReaction ConditionsOperation in experiment
100% With potassium hydroxide; water In tetrahydrofuran at 20℃; To a stirred suspension of 2.00 g of palladium, 10 wt percent on activated carbon in methanol (30 ml) was added compound 35a (0.03 mol, 6.66 g) and then subjected to hydrogenation on Parr shaker at 60 psi for 15 hour. The reaction mixture was filtered through a Celite.(R). pad and the filtrate was concentrated under vacuum to give the title compound in 90percent (6.00 g) yield. The crude ester was subjected to saponification using 1N potassium hydroxide in THF at room temperature to get the corresponding carboxylic acid in nearly quantitative yield. The carboxylic acid was heated in concentrated sulfuric acid at 90° C. for 4 h to get the title compound as light brown solid in 70percent (3.50 g) overall yield. 1H NMR (300 MHz, CDCl3): δ 2.67 (2H, m); 3.08 (2H, m); 3.98 (3H, s); 6.89 (1H, s); 7.15 (1H, s); 7.32 (1H, s). 13C NMR (75 Hz, CDCl3): δ 24.59; 35.62; 55.04; 106.57; 106.86; 128.76; 145.58; 149.32; 153.85; 206.74.
Reference: [1] Patent: US2008/153878, 2008, A1, . Location in patent: Page/Page column 24-25
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