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Chemical Structure| 214472-41-0 Chemical Structure| 214472-41-0

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Chemical Structure| 214472-41-0

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Product Details of [ 214472-41-0 ]

CAS No. :214472-41-0
Formula : C16H24N2O5
M.W : 324.37
SMILES Code : O=C(OC)C1=CC(OCCCN2CCOCC2)=C(OC)C=C1N

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Application In Synthesis of [ 214472-41-0 ]

* 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 [ 214472-41-0 ]

[ 214472-41-0 ] Synthesis Path-Downstream   1~2

  • 1
  • [ 3473-63-0 ]
  • [ 214472-41-0 ]
  • [ 199327-61-2 ]
YieldReaction ConditionsOperation in experiment
81.73% In methanol; at 50 - 60℃; for 6h; To a slurry of compound 2 (10.0 g, 0.044 mol) and anhydrous potassium carbonate (18.2 g, 0.1317 mol) in acetonitrile (100 ml), 4-(3-chloropropyl)morpholine hydrochloride (10 g, 0.05 mol) was added and refluxed for 2.5 h. The solvent was distilled under reduced pressure to give residue which was diluted with water(60 ml) and extracted with ethyl acetate (100 ml) after completion of reaction. The organic layer was distilled under vacuum and dried to obtain 13.65 g (87.50percent) of the compound 3; m. p. 231-233 °C. 1HNMR (DMSO?d6, 400 MHz): delta 7.62 (s, 1H), 7.31 (s, 1H), 7.07 (s, 1H),3.90 (s, 3H), 3.79 (s, 3H), 4.18 (t, 2H), 4.17 (s, 2H), 4.16 (s, 3H), 2.37 (d,1H), 1.91 (d, 2H). IR (numax, cm-1): 3134, 1695, 1601. The compound 3 (10 g, 0.0282 mol) was hydrogenated using 10percent palladium on carbon (1.0 g) in methanol (100 ml) at 3-4 kg/cm3 atambient temperature for 5 h. After completion of the reaction, the catalyst was removed by filtration. The filtrate was distilled off completely to obtain 8.27 g (90.38percent) of compound 4. Compound 4 (8.0 g, 0.0247 mol) was added to formamidine acetate (2.68 g, 0.0257 mol) in methanol (64 ml) and heated at 50-60 °C for 6 h. The reaction mass was cooled to room temperature and stirred for 3 h after completion of reaction. The resulting solid was filtered, washed with methanol (10 ml) and dried to obtain 6.44 g (81.73percent) of the title compound 1; m. p. 267-269 °C 1HNMR (DMSO?d6, 400 MHz): delta 12.06 (s, 1H), 7.96 (s, 1H), 7.45 (s, 1H),7.12 (s, 1H), 4.11 (t, 2H), 3.91 (s, 3H), 3.58 (t, 4H), 3.58 (t, 4H), 1.92 (t, 1H). HRMS (ESI+): m/z: calcd for C16H22N3O4: 343.1508 [M + Na]+;found: 343.1532. IR (numax, cm-1): 2909, 1639, 1607.
In methanol; at 50 - 60℃; for 6h; Step II: preparation of 7-methoxy-6-(3-morpholin-4-ylpropoxy)-3//-quinazolin-4-one; 2-Amino-4-methoxy-5-(3-mophiholin-4-yfpropoxy)benzoic acid methyl ester (4 g) was added to formamidine acetate (1.34 g) in methanol (32 ml) and heated at 50-60 0C for 6 hours. After completion of reaction, the reaction mass was cooled to room temperature and stirred for 3 hours. The resulting solid was filtered, washed with methanol and dried to obtain 3.5 g of the title compound.
  • 2
  • [ 16712-16-6 ]
  • [ 77287-34-4 ]
  • [ 214472-41-0 ]
  • [ 199327-61-2 ]
YieldReaction ConditionsOperation in experiment
71.1% at 170℃; for 3h; (XI) Cyclizing Step; (1) Preparation of 7-methoxy-6-(3-morpholinopropoxy)-3,4-dihydroquinazolin-4-one Methyl 2-amino-5-methoxy-4-(3-morpholinopropoxy)benzoate 5 (41.6 g, 0.1284 mol) is placed in a bottle with a rounded bottom, HCONH2 (108 ml) and HCO2NH4 (9.8 g, 0.0762 mmol) are added to react for 3 hours at 170° C. After cooled to normal temperature, filter and dried, ice water (83.2 ml) is used to wash to obtain yellowish-white solid compound 6 (14.8 g, 71.1percent). 1H-NMR (DMSO) spectrum: 2.07 (m, 2H), 2.58 (brs, 4H), 2.61 (t, 2H, J=6.8 Hz), 3.71 (m, 4H), 3.98 (s, 3H), 4.18 (t, 2H, J=6.8 Hz), 7.15 (s, 1H), 7.59 (s, 1H), 8.00 (s, 1H).
 

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