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Chemical Structure| 56427-76-0 Chemical Structure| 56427-76-0

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Chemical Structure| 56427-76-0

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Product Details of [ 56427-76-0 ]

CAS No. :56427-76-0
Formula : C19H18O4
M.W : 310.34
SMILES Code : O=C(OC(C)C)CC1=CC=C(C2=C1)OCC3=CC=CC=C3C2=O

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Application In Synthesis of [ 56427-76-0 ]

* 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 [ 56427-76-0 ]

[ 56427-76-0 ] Synthesis Path-Downstream   1~2

  • 1
  • [ 55453-87-7 ]
  • [ 67-63-0 ]
  • [ 56427-76-0 ]
YieldReaction ConditionsOperation in experiment
96% toluene-4-sulfonic acid;Reflux; 10 g (0.037 moles) of 6,11-dihydro-11-oxodibenz[b,e] oxepin-2-acetic acid were dissolved in 150 ml of isopropanol (iPrOH) and 2 g (0.01 moles) of p-toluenesulfonic acid (p-TsOH) were added to this solution. The resulting solution was heated under reflux, distilling 100 ml of iPrOH from the reaction medium. The reaction was cooled to 40-45°C and 1 ml (0.007 ml) of Et3N was added. Then, the reaction mixture was left to cool to 20-25°C and stirring was maintained at this temperature for 30 minutes. Then, the suspension was left to cool to 5-10°C, it was filtered and the resulting product was washed with iPrOH. 11 g (0.035 moles, 96percent) of a white solid identified as the compound of the title were obtained, the spectroscopic properties of which are: 1H-NMR (CDCl3, 400 MHz), delta: 1.21 (d, 6H); 3.59 (s, 2H); 4.12 (m, 1H); 5.11 (s, 2H), 6.97 (d, 1H); 7.29 (d, 1H); 7.38 (m, 2H); 7.47 (m, 1H); 7.84 (d, 1H); 8.08 (d, 1H) ppm. 13C-NMR (CDCl3, 400 MHz), delta: 21.78 (2); 40.22; 68.35; 73.55; 120.95; 125.10; 127.93; 129.18; 129.42; 132.34; 132.72; 135.55; 136.31; 140.39; 160.40; 170.90; 171.37; 190.71 ppm. MS, M++1: 311.12
EXAMPLE 22 Isopropyl 6,11-Dihydro-11-oxodibenz[b,e]oxepin-2-acetate Reaction of 6,11-dihydro-11-oxodibenz[b,e]oxepin-2-acetic acid with 2-propanol as described in Example 4 provides isopropyl 6,11-dihydro-11-oxodibenz[b,e]oxepin-2-acetate as colorless crystals, m.p. 67°-68.5° C. Analysis: Calculated for C19 H18 O4: 73.53percent C; 5.85percent H. Found: 73.59percent C; 5.92percent H.
  • 2
  • [ 55453-87-7 ]
  • [ 56427-76-0 ]
YieldReaction ConditionsOperation in experiment
EXAMPLE 4 Reaction of 6,11-dihydro-11-oxodibenz[b,e]oxepin-2-acetic acid, Example 2, with 2-propanol as described in Example 3 provides isopropyl 6,11-dihydro-11-oxodibenz[b,e]oxepin-2-acetate as colorless crystals, mp 67°-68.5° C. Analysis: Calculated for C19 H18 O4: 73.53percentC; 5.85percentH. Found: 73.59percentC; 5.92percentH.
 

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