Dichloromethane → 8-bromo-3,4-dihydro-2H-naphthalen-1-one

HRID 630435

Reaktionsgleichung

Reaktionsgleichung von HRID 630435
[Br:1][C:2]1[CH:3]=[CH:4][CH:5]=[C:6]2[C:11]=1[CH:10]([OH:12])[CH2:9][CH2:8][CH2:7]2.ClCCl.C1C=C[NH+]=CC=1.[O-][Cr](Cl)(=O)=O>>[Br:1][C:2]1[CH:3]=[CH:4][CH:5]=[C:6]2[C:11]=1[C:10](=[O:12])[CH2:9][CH2:8][CH2:7]2

Komponenten

4

Edukt 3

HCID 6344DichloromethaneHCID 453577378-Bromo-1,2,3,4-tetrahydronaphthalen-1-olHCID 178418287HCID 178418287, Verbindung

Produkt 1

HCID 113451298-bromo-3,4-dihydro-2H-naphthalen-1-one

Versuchsvorschrift

To a solution of 56.0 g (250 mmol) of 8-bromo-1,2,3,4-tetrahydronaphthalen-1-ol in 3500 ml of dichloromethane 265 g (1.23 mol) of PCC was added. The resulting mixture was stirred at room temperature for 5 h, then passed through a silica gel pad (500 ml), and evaporated to dryness. Yield 47.6 g (88%) of a colorless solid. Anal. Calc for C10H9BrO: C, 53.36; H, 4.03. Found: C, 53.44; H, 4.19. 1H NMR (CDCl3): δ 7.53 (m, 1H, 7-H); 7.18-7.22 (m, 2H, 5,6-H); 2.95 (t, J=6.1 Hz, 2H, 4,4′-H); 2.67 (t, J=6.6 Hz, 2H, 2,2′-H); 2.08 (qv, J=6.1 Hz, J=6.6 Hz, 2H, 3,3′-H).

Aufarbeitung

  1. customevaporated to dryness

Quellen und Nachweise

ORD-Eintrag
ord-a98f141ba2a9434dbfe73d61f66fbb27
Quelldatensatz
uspto-grants-2016_04
Patentnummer
US09315593B2

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