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Chemical Structure| 2216-99-1 Chemical Structure| 2216-99-1

Structure of 2216-99-1

Chemical Structure| 2216-99-1

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Product Details of [ 2216-99-1 ]

CAS No. :2216-99-1
Formula : C11H12O4
M.W : 208.21
SMILES Code : O=C(O)C1=CC(CC=C)=CC(OC)=C1O

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Application In Synthesis of [ 2216-99-1 ]

* 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 [ 2216-99-1 ]

[ 2216-99-1 ] Synthesis Path-Downstream   1~1

  • 1
  • [ 85614-43-3 ]
  • [ 2216-99-1 ]
YieldReaction ConditionsOperation in experiment
98% 110 g of <strong>[85614-43-3]methyl 5-allyl-3-methoxysalicylate</strong> (97% pure Aldrich grade) was transferred into a 2000ml 3-necked round bottom flask (RBF) fitted with an overhead stirrer and a reflux condenser. To this aqueous NaOH solution (44 g of NaOH in 1000 ml water) was added and the resultant mixture was refluxed with stirring (bath temp. 110C) for 2-3 h. Progress of the reaction was monitored by quenching aliquot sample with dilute hydrochloric acid followed by extraction with solvent (ethylene dichloride (EDC) or ether) and analyzing by HPLC (area %) for the conversion of ester to acid. Having ensured the complete conversion by HPLC, cool the reaction mixture to room temperature (25 C) and add the same drop wise into a beaker containing dilute HC1 (140 ml 35% HC1 in 350 ml water) with stirring. The acid (product) precipitates as a solid and the resultant slurry was stirred for about an hour, then filtered, washed with DM water till chloride free and dried (110 C for 8h, moisture ~<1%). Yield: 101 g (98%), purity: 99.7% (HPLC area %).
With sodium hydroxide; In methanol; water; at 50℃; for 2h; Methyl 5-allyl-3-methoxysalicylate (manufactured by Tokyo Kasei Kogyo Co., Ltd.)10 parts,200 parts of water and 100 parts of methanol, followed by the addition of 1.8 parts of sodium hydroxide and heating at 50 DEG C for 2 hours.After cooling, the reaction solution was added to 200 parts of ice water, stirred for 1 hour, and then hydrochloric acid was added until the pH became 2. The resulting precipitate was filtered and washed with 200 parts of ion-exchanged water to obtain 8.5 parts of a compound represented by the formula (BC-14-A).
 

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