1,5-Dibromopentane → 5-[(5-Bromopentyl)oxy]-2-benzofurancarboxylic Acid Ethyl Ester
Reaktionsgleichung
[CH2:1]([O:3][C:4]([C:6]1[O:7][C:8]2[CH:14]=[CH:13][C:12]([OH:15])=[CH:11][C:9]=2[CH:10]=1)=[O:5])[CH3:2].[Br:16][CH2:17][CH2:18][CH2:19][CH2:20][CH2:21]Br>>[CH2:1]([O:3][C:4]([C:6]1[O:7][C:8]2[CH:14]=[CH:13][C:12]([O:15][CH2:21][CH2:20][CH2:19][CH2:18][CH2:17][Br:16])=[CH:11][C:9]=2[CH:10]=1)=[O:5])[CH3:2]Komponenten
3
Versuchsvorschrift
Starting with 2.41 g (11.69 mmol) of 5-hydroxy-2-benzofurancarboxylic acid ethyl ester, and 8.06 g (35.06 mmol) of 1,5-dibromopentane, the title compound (3.03 g; 73%) was obtained as a white solid, mp 31° C., using the procedure of example 21.
Quellen und Nachweise
- ORD-Eintrag
- ord-c723d8456bad44739b47e7d35cb90345
- Quelldatensatz
- uspto-grants-1995_07
- Patentnummer
- US05434186
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