Carbon Tetrachloride → 1-(2-Chloroethyl)-1,8-diethyl-1,3,4,9-tetrahydropyrano[3,4-b]indole

HRID 901058Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 901058
[CH2:1]([C:3]1([CH2:18][CH2:19]O)[C:8]2[NH:9][C:10]3[C:15]([C:7]=2[CH2:6][CH2:5][O:4]1)=[CH:14][CH:13]=[CH:12][C:11]=3[CH2:16][CH3:17])[CH3:2].C1C=CC(P(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1.C(Cl)(Cl)(Cl)[Cl:41]>O>[Cl:41][CH2:19][CH2:18][C:3]1([CH2:1][CH3:2])[C:8]2[NH:9][C:10]3[C:15]([C:7]=2[CH2:6][CH2:5][O:4]1)=[CH:14][CH:13]=[CH:12][C:11]=3[CH2:16][CH3:17]

Komponenten

5

Edukt 3

HCID 5943Carbon TetrachlorideHCID 11776TriphenylphosphineHCID 108910512-(1,8-Diethyl-1,3,4,9-tetrahydropyrano[3,4-b]indol-1-yl)-ethanol

Produkt 1

HCID 219075721-(2-Chloroethyl)-1,8-diethyl-1,3,4,9-tetrahydropyrano[3,4-b]indoleAusbeute 51 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 962WaterLösungsmittel

Versuchsvorschrift

A solution of compound 1 (136 mg, 0.5 mmol), PPh3 (262 mg, 1.0 mmol, 2.0 eq), and CCl4 (2.5 mL) was refluxed overnight. The resulting mixture was then diluted with water and extracted three times with CH2Cl2. The organic phases were combined, dried with Na2SO4, concentrated, and purified by column chromatography using 5:95:EtOAc:Hexane to give a white solid (74 mg, 51%): mp 106-107° C. (dec). 1HNMR (CDCl3, δ TMS): 0.93 (t, 3H), 1.37 (t, 3H), 1.91 (m, 2H), 2.34 (m, 2H), 2.76 (m, 2H), 2.87 (q, 2H), 3.46 (dm, 2H), 3.99 (m, 2H), 7.04-7.38 (m, 3H, Ar—H), 7.55 (br, 1H, NH). MS−: m/z 326 (MCl−), 290 ([M−H]−). Anal. (C17H22NOCl): C, H, N.

Aufarbeitung

  1. extractionextracted three times with CH2Cl2
  2. dry with materialdried with Na2SO4
  3. concentrationconcentrated
  4. custompurified by column chromatography

Quellen und Nachweise

ORD-Eintrag
ord-93f84b78654546f988253242b342eb3d
Quelldatensatz
uspto-grants-2008_04
Patentnummer
US07361680B2

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