Reaktionsgleichung
[O:1]1[C:5]2[CH:6]=[CH:7][CH:8]=[C:9]([C:10](=[O:12])[CH3:11])[C:4]=2[O:3][CH2:2]1.[Br:13]CC(C1C=C(Cl)C=CC=1Cl)=O>>[O:1]1[C:5]2[CH:6]=[CH:7][CH:8]=[C:9]([C:10](=[O:12])[CH2:11][Br:13])[C:4]=2[O:3][CH2:2]1Komponenten
3
Versuchsvorschrift
This compound was prepared from 1-benzo[1,3]dioxol-4-yl-ethanone (2.15 g, 13.1 mmol) in the manner described for 2-bromo-1-(2,5-dichlorophenyl)ethanone (Example I-2), affording 1.54 g (48%) of 1-benzo[1,3]dioxol-4-yl-2-bromo-ethanone as an off-white solid. 1H-NMR (CD2Cl2) δ; 7.41 (dd, J=8.1 Hz, 1H), 7.05 (dd, J=8.1 Hz, 1 H), 6.94 (dd, J=8.8 Hz, 1H), 6.13 (s, 2H), 4.55 (s, 2H). TLC Rf=0.28, 15%, ethyl acetate-hexanes.
Quellen und Nachweise
- ORD-Eintrag
- ord-5143ea45ae794d5a947696bd090bb286
- Quelldatensatz
- uspto-grants-2010_02
- Patentnummer
- US07659412B2
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