StartseiteMCPWorkbenchSkills
StartseiteWorkbenchBenachrichtigungenMein Bereich
llms.txt · MCP-AnleitungDatenschutz · Nutzungsbedingungen · Supportv1.8.0
  1. Startseite
  2. /Reaktion

Triphenylphosphine → 3-[6-(6-Chloro-purin-9-yl)-2,2-dimethyl-tetrahydro-furo[3,4-d][1,3]dioxol-4-ylmethoxy]isoxazole-5-carboxylic acid methyl ester

HRID 2056310
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 2056310
[Cl:1][C:2]1[N:10]=[CH:9][N:8]=[C:7]2[C:3]=1[N:4]=[CH:5][N:6]2[CH:11]1[CH:15]2[O:16][C:17]([CH3:20])([CH3:19])[O:18][CH:14]2[CH:13]([CH2:21][OH:22])[O:12]1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.[CH3:42][O:43][C:44]([C:46]1[O:50][N:49]=[C:48](O)[CH:47]=1)=[O:45].CCOC(/N=N/C(OCC)=O)=O>ClCCl>[CH3:42][O:43][C:44]([C:46]1[O:50][N:49]=[C:48]([O:22][CH2:21][CH:13]2[CH:14]3[CH:15]([O:16][C:17]([CH3:19])([CH3:20])[O:18]3)[CH:11]([N:6]3[CH:5]=[N:4][C:3]4[C:7]3=[N:8][CH:9]=[N:10][C:2]=4[Cl:1])[O:12]2)[CH:47]=1)=[O:45]
KomponentenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

6

Edukt 4

HCID 11776TriphenylphosphineHCID 4206947[4-(6-Chloropurin-9-yl)-2,2-dimethyl-3a,4,6,6a-tetrahydrofuro[3,4-d][1,3]dioxol-6-yl]methanolHCID 5462977Diethyl azodicarboxylateHCID 178498603HCID 178498603, Verbindung

Produkt 1

HCID 865997133-[6-(6-Chloro-purin-9-yl)-2,2-dimethyl-tetrahydro-furo[3,4-d][1,3]dioxol-4-ylmethoxy]isoxazole-5-carboxylic acid methyl ester
Ausbeute 95 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6344DichloromethaneLösungsmittel2×

Versuchsvorschrift

To a solution of [6-(6-Chloro-purin-9-yl)-2,2-dimethyl-tetrahydro-furo[3,4-d][1,3]dioxol-4-yl]-methanol (0.570 g, 1.74 mmol) in 16 mL of dry dichloromethane was added polymer-bound triphenylphosphine (PS-TPP; Argonaut Tech., 2.14 mmol/g, 0.91 g, 1.2 eq), followed by methyl-3-hydroxy-5-isoxazolecarboxylate (0.248 g, 1 eq). The mixture was sonicated for 15 minutes then stirred at room temperature for 1 h under argon. The reaction mixture was cooled to 0° C. and under argon flow diethylazodicarboxylate (0.33 g, 1.1 eq), dissolved in 1 ml of dichloromethane, was added dropwise via syringe. The mixture was protected from light and stirred at 0° C. for 30 min. then at room temperature for 20 h. The resin was washed liberally with dichloromethane and methanol. The organic solution obtained from the washes was concentrated to give, after flash chromatography purification, 0.740 g of the product as a white solid (95% yield). 1H NMR (300 MHz, CDCl3) δ 8.76 (s, 1H), 8.23 (s, 1H), 6.42 (s, 1H), 6.23 (d, J=2.1 Hz, 1H), 5.43 (dd, J=2.1 Hz, 1H), 5.14 (dd, J=3.6 Hz, 1H), 4.7 (m, 1H), 4.61 (dd, J=3.9 Hz, 1H), 4.49 (dd, J=5.7 Hz, 1H), 3.93 (s, 3H), 1.65 (s, 3H), 1.42 (s, 3H). MW calculated for C18H18ClN5O7 (MH+) 452, found 452 by LCMS.

Aufarbeitung

  1. customThe mixture was sonicated for 15 minutes
  2. additionwas added dropwise via syringe
  3. stirringstirred at 0° C. for 30 min.
  4. waitat room temperature for 20 h
  5. washThe resin was washed liberally with dichloromethane and methanol
  6. customThe organic solution obtained from the washes
  7. concentrationwas concentrated
  8. customto give

Quellen und Nachweise

ORD-Eintrag
ord-068d0fb351a046b881e327c6c4f6af04
Quelldatensatz
uspto-grants-2008_02
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US07335648B2

Notizen zur Reaktion

Wird geladen…

Auf dieser SeiteKomponentenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion