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Propionic Acid → 4-Chloro-6-methyl-10,10-dioxo-2-propionylamino-10,11-dihydro-5-oxa-10lambda*6*-thia-dibenzo[a,d]cycloheptene-8-carboxylic acid methyl ester

HRID 1173348
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 1173348
C(Cl)(=O)C(Cl)=O.[C:7](O)(=[O:10])[CH2:8][CH3:9].[CH3:12][O:13][C:14]([C:16]1[CH:17]=[C:18]([CH3:35])[C:19]2[O:25][C:24]3[C:26]([Cl:31])=[CH:27][C:28]([NH2:30])=[CH:29][C:23]=3[CH2:22][S:21](=[O:33])(=[O:32])[C:20]=2[CH:34]=1)=[O:15]>ClCCl.CN(C=O)C>[CH3:12][O:13][C:14]([C:16]1[CH:17]=[C:18]([CH3:35])[C:19]2[O:25][C:24]3[C:26]([Cl:31])=[CH:27][C:28]([NH:30][C:7](=[O:10])[CH2:8][CH3:9])=[CH:29][C:23]=3[CH2:22][S:21](=[O:33])(=[O:32])[C:20]=2[CH:34]=1)=[O:15]
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Komponenten

6

Edukt 3

HCID 1032Propionic AcidHCID 65578Oxalyl chlorideHCID 115596902-Amino-4-chloro-6-methyl-10,10-dioxo-10,11-dihydro-5-oxa-10lambda *6*-thia-dibenzo[a,d]cycloheptene-8-carboxylic acid methyl ester

Produkt 1

HCID 117045214-Chloro-6-methyl-10,10-dioxo-2-propionylamino-10,11-dihydro-5-oxa-10lambda*6*-thia-dibenzo[a,d]cycloheptene-8-carboxylic acid methyl ester

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 6228
Dimethylformamide
Lösungsmittel
HCID 6344DichloromethaneLösungsmittel

Versuchsvorschrift

A solution of oxalyl chloride (0.17 mL, 2.03 mmol) and propionic acid (0.15 mL, 2.03 mmol) in dichloromethane (20 mL) was stirred for 1 h. Compound of Example 1 (0.5 g, 1.35 mmol) in DMF (5 mL) was added to the reaction mixture at 25° C. and stirred for 18 h. The solvent was removed under vacuum, water (25 mL) was added and the solid precipitated was filtered. The crude product was purified by column chromatography (silica gel, 1% methanol in chloroform) to obtain the title compound. Yield: 0.28 g, (60%); mp: 226-228° C.; 1H NMR (DMSO-d6, 300 MHz): δ 1.06 (t, 3H, CH3), 2.33 (q, 2H, CH2), 2.64 (s, 3H, CH3), 3.85 (s, 3H, OCH3), 5.30 (s, 2H, CH2), 7.66 (d, 1H, Ar), 7.88 (s, 1H, Ar), 8.10 (s, 1H, Ar), 8.15 (s, 1H, Ar), 10.26 (s, 1H, NH); MS: m/e (EI) 423 (M+); analysis: C19H18ClNO6S requires C, 53.66; H, 4.28; N, 3.30; Cl, 8.32; S, 7.56. found: C, 53.38; H, 4.27; N, 3.48; Cl, 8.64; S, 7.75%.

Aufarbeitung

  1. customThe solvent was removed under vacuum, water (25 mL)
  2. additionwas added
  3. customthe solid precipitated
  4. filtrationwas filtered
  5. customThe crude product was purified by column chromatography (silica gel, 1% methanol in chloroform)

Quellen und Nachweise

ORD-Eintrag
ord-9dd12f67a62b49678877feffc346b9e9
Quelldatensatz
uspto-grants-2010_11
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US07834052B2

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