Trifluoroacetic acid → 2-(7-Amino-9H-thioxanthen-4-yl)-6-morpholin-4-yl-pyran-4-one

HRID 33808Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 33808
C(OC(=O)[NH:7][C:8]1[CH:21]=[CH:20][C:19]2[S:18][C:17]3[C:12](=[CH:13][CH:14]=[CH:15][C:16]=3[C:22]3[O:23][C:24]([N:29]4[CH2:34][CH2:33][O:32][CH2:31][CH2:30]4)=[CH:25][C:26](=[O:28])[CH:27]=3)[CH2:11][C:10]=2[CH:9]=1)(C)(C)C.FC(F)(F)C(O)=O>ClCCl>[NH2:7][C:8]1[CH:9]=[C:10]2[C:19]([S:18][C:17]3[C:16]([C:22]4[O:23][C:24]([N:29]5[CH2:34][CH2:33][O:32][CH2:31][CH2:30]5)=[CH:25][C:26](=[O:28])[CH:27]=4)=[CH:15][CH:14]=[CH:13][C:12]=3[CH2:11]2)=[CH:20][CH:21]=1

Komponenten

4

Edukt 2

HCID 6422Trifluoroacetic acidHCID 23574574[5-(6-Morpholin-4-yl-4-oxo-4H-pyran-2-yl)-9H-thioxanthen-2-yl]-carbamic acid tert-butyl ester

Produkt 1

HCID 221394022-(7-Amino-9H-thioxanthen-4-yl)-6-morpholin-4-yl-pyran-4-one

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6344DichloromethaneLösungsmittel

Versuchsvorschrift

To a solution of [5-(6-Morpholin-4-yl-4-oxo-4H-pyran-2-yl)-9H-thioxanthen-2-yl]-carbamic acid tert-butyl ester (19) (1.08 g, 2.19 mmol) in dichloromethane (10 ml) was added trifluoroacetic acid (2 ml) and left under stirring at room temperature overnight. The solvent was dried in vacuo revealing a viscous dark brown liquid. Saturated sodium bicarbonate solution (20 ml) was added to the residue, which was left to stir for 20 mins. The brown precipitate was filtered, washing with water and left to dry in the vacuum oven overnight (0.77 g, 90%). 1HNMR (300 MHz, DMSO-d6): δH=3.40 (4H, t), 3.70 (4H, t), 3.77 (2H, s), 5.23 (2H, bs), 5.50 (1H, d), 6.17 (1H, d), 6.44 (1H, dd), 6.65 (1H, d), 7.09 (1H, d), 7.35 (1H, t), 7.47-7.59 (2H, m); m/z (LC-MS, ESP), RT=3.51 minutes, (M++1)=392.

Aufarbeitung

  1. waitleft
  2. customThe solvent was dried in vacuo
  3. additionSaturated sodium bicarbonate solution (20 ml) was added to the residue, which
  4. waitwas left
  5. stirringto stir for 20 mins
  6. filtrationThe brown precipitate was filtered
  7. washwashing with water
  8. waitleft
  9. customto dry in the vacuum oven overnight (0.77 g, 90%)

Quellen und Nachweise

ORD-Eintrag
ord-68c5968196104529a711a1a1771ea7e6
Quelldatensatz
uspto-grants-2008_09
Patentnummer
US07429660B2

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