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Chemical Structure| 64201-30-5 Chemical Structure| 64201-30-5

Structure of 64201-30-5

Chemical Structure| 64201-30-5

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Product Details of [ 64201-30-5 ]

CAS No. :64201-30-5
Formula : C12H16O3
M.W : 208.25
SMILES Code : O=C(OC)CCCCC1=CC=C(O)C=C1

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Application In Synthesis of [ 64201-30-5 ]

* 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 [ 64201-30-5 ]

[ 64201-30-5 ] Synthesis Path-Downstream   1~3

  • 2
  • [ 67-56-1 ]
  • [ 4654-08-4 ]
  • [ 64201-30-5 ]
YieldReaction ConditionsOperation in experiment
99% With sulfuric acid; In water; at 65℃;Inert atmosphere; [0199] Equipment: 500 ml three-necked flask equipped with magnetic agitation and a refrigerant and placed under nitrogen scavenging-Oil bath. [0200] The <strong>[4654-08-4]5-(4-hydroxyphenyl)-pentanoic acid</strong> 1 (25 g) is put in solution in methanol (375 ml) before slowly pouring in a sulphuric acid solution (25 ml). The solution thus obtained is heated at 65 C. for the night. [0201] The advancement of the reaction is monitored by TLC (eluent: heptane/ethyl acetate: 1/1). After a night of agitation under these conditions, the disappearance of the starting acid 1 is observed in favour of a less polar product. [0202] The reaction medium is concentrated dry under reduced pressure. The residue obtained is taken up by dichloromethane (300 ml). The heterogeneous medium is neutralised and basified, carefully, with a saturated sodium hydrogenocarbonate solution (pH 8-9). The aqueous phase is then extracted three times with dichloromethane. Once collected together, the organic phases are washed once with a saturated sodium chloride solution, dried on magnesium sulphate, filtered and then concentrated under reduced pressure in order to provide a pinkish oil (27 g). [0203] Yield 99%.
99% With sulfuric acid; at 65℃; Step 1: Esterification (0419) Equipment: 500 ml Three-Necked Flask Equipped with Magnetic Agitation, Coolant and Placed Under a Stream of Nitrogen-Oil Bath. (0420) <strong>[4654-08-4]5-(4-hydroxyphenyl)-pentanoic acid</strong> 1 (25 g) is placed in solution in methanol (37 5 ml) before slow pouring of sulfuric acid (25 ml). The solution obtained is heated to 65 C. overnight. The progress of the reaction is monitored by TLC (eluting with heptane/ethyl Acetate 1:1). After overnight agitation under these conditions the starting acid 1 is seen to disappear to the benefit of a less polar product. (0421) The reaction medium is concentrated to dryness under reduced pressure. The residue obtained is re-dissolved in dichloromethane (300 ml). The heterogeneous medium is neutralised and basified with precaution with saturated sodium hydrogen carbonate solution (pH 8-9). The aqueous phase is then extracted three times with dichloromethane. Once combined, the organic phases are washed once with saturated sodium chloride solution, dried over magnesium sulfate, filtered and concentrated under reduced pressure to afford a pinkish oil (27 g). (0422) Yield: 99%
  • 3
  • [ 4654-08-4 ]
  • [ 18107-18-1 ]
  • [ 64201-30-5 ]
YieldReaction ConditionsOperation in experiment
In methanol; diethyl ether; at 20℃; for 1h; General procedure: Various methyl-benzoates were commercially available and used without purification. Some methyl-benzoates (2 K, L, M, R and Q) were synthesized from benzoic acid. The benzoic acids were dissolved in anhydrous methanol and TMS-diazomethane solution 2.0 M in diethyl ether (4.0 equiv). The reactions were stirred at r.t for 1 h. The reactions were monitored by TLC. The reaction solvent was removed under reduced pressure. The products were purified by flash chromatography on silica gel with 10% ethyl acetate in hexane. The products were obtained as oiled solution. Yield 80-90%.
 

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