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Cesium hydroxide → (Z)-7-Chloro-5-(4-(4-methoxybenzyloxy)phenyl)-1-methyl-1H-benzo[e][1,4]diazepin-2(3H)-one

HRID 2263701
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 2263701
Cl[C:2]1[C:3]2[CH:14]=[C:13]([Cl:15])[CH:12]=[CH:11][C:4]=2[N:5]([CH3:10])[C:6](=[O:9])[CH2:7][N:8]=1.[OH-].[Cs+].[CH3:18][O:19][C:20]1[CH:42]=[CH:41][C:23]([CH2:24][O:25][C:26]2[CH:31]=[CH:30][C:29](B3OC(C)(C)C(C)(C)O3)=[CH:28][CH:27]=2)=[CH:22][CH:21]=1>O1CCOCC1.O.C(OCC)(=O)C.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[Cl:15][C:13]1[CH:12]=[CH:11][C:4]2[N:5]([CH3:10])[C:6](=[O:9])[CH2:7][N:8]=[C:2]([C:29]3[CH:28]=[CH:27][C:26]([O:25][CH2:24][C:23]4[CH:22]=[CH:21][C:20]([O:19][CH3:18])=[CH:42][CH:41]=4)=[CH:31][CH:30]=3)[C:3]=2[CH:14]=1
KomponentenReaktionsbedingungenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

7

Edukt 3

HCID 62750Cesium hydroxideHCID 123385855,7-Dichloro-1-methyl-1,3-dihydro-2H-1,4-benzodiazepin-2-oneHCID 595943752-{4-[(4-Methoxyphenyl)methoxy]phenyl}-4,4,5,5-tetramethyl-1,3,2-dioxaborolane

Produkt 1

HCID 59594389(Z)-7-Chloro-5-(4-(4-methoxybenzyloxy)phenyl)-1-methyl-1H-benzo[e][1,4]diazepin-2(3H)-one

Reagenzien, Katalysatoren, Lösungsmittel 3

HCID 178418397
HCID 178418397, Verbindung
Katalysator
HCID 8857Ethyl AcetateLösungsmittel
HCID 218864351,4-Dioxane--water (1/1)Lösungsmittel

Reaktionsbedingungen

Temperatur
90 °C

Versuchsvorschrift

(E)-5,7-Dichloro-1-methyl-1H-benzo[e][1,4]diazepin-2(3H)-one (5.00 g, 20.57 mmol), cesium hydroxide (6.91 g, 41.1 mmol), and 2-(4-(4-methoxybenzyloxy)phenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (9.10 g, 26.7 mmol) were dissolved in dioxane/water (100 mL/30 mL), and the mixture was subjected to vacuum followed by nitrogen gas. The de-gassing was repeated twice, and then tetrakis(triphenylphosphine)palladium (0) (475 mg, 0.41 mmol) was added. The reaction was then heated to 90° C. for 18 hours, and then cooled to room temperature. The crude mixture was diluted with ethyl acetate, and the organic solution was washed with water, then brine, and then dried over sodium sulfate, and concentrated. The crude product was vacuum pulled through a silica plug eluting with 6:4 ethyl acetate:hexanes. The filtrate was concentrated and then washed with methyl-tert-butyl ether. The product was collected as a light yellow solid by filtration (5.13 g, 59%). 1HNMR (300 MHz, CDCl3) δ 3.36 (s, 3H), 3.73 (d, 1H), 3.81 (s, 3H), 4.77 (d, 1H), 5.03 (s, 2H), 6.91 (d, 2H), 6.98 (d, 2H), 7.27 (d, 1H), 7.32 (d, 1H), 7.36 (d, 2H), 7.49 (dd, 1H), 7.55 (d, 2H).

Aufarbeitung

  1. temperaturecooled to room temperature
  2. washthe organic solution was washed with water
  3. dry with materialbrine, and then dried over sodium sulfate
  4. concentrationconcentrated
  5. washeluting with 6:4 ethyl acetate
  6. concentrationThe filtrate was concentrated
  7. washwashed with methyl-tert-butyl ether
  8. filtrationThe product was collected as a light yellow solid by filtration (5.13 g, 59%)

Quellen und Nachweise

ORD-Eintrag
ord-af6c9973cd97404ba2c83b1ee58de9c4
Quelldatensatz
uspto-grants-2010_12
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US07851465B2

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