Synthese des Aroxy(alcoxy)sulfonyl-5-F-hexyl Oxazolidin-2-ones
摘要:
The addition of 1-F-hexyl-2-bromoethanol and 2-F-hexyl-2-bromoethanol to aroxyor alkoxysulfonyl isocyanates in anhydrous ether allowed the preparation of the corresponding brominated F-alkyl carbamates. In the case of 1-F-hexyl-2-bromoethanol, the easy cyclization of carbamates to F-alkyl oxazolidin-2-ones was achieved by the action of triethylamine in refluxing acetone.
Reactivity of F-alkyl oxirans was investigated towards nucleophilic and electrophilic reagents. They are quite inert in acid medium. On the other hand, in basic medium they lead to regiospecific opening reactions. Their reactions with organometalliccompounds need extreme conditions : with Grignardreagents they sometimes lead to unexpected results.
COUDURES, C.;PASTOR, R.;SZONYI, S.;CAMBON, A., J. FLUOR. CHEM., 1984, 24, N 1, 105-115
作者:COUDURES, C.、PASTOR, R.、SZONYI, S.、CAMBON, A.
DOI:——
日期:——
Synthese des Aroxy(alcoxy)sulfonyl-5-<i>F</i>-hexyl Oxazolidin-2-ones
作者:H. Rmedi、M. Beji、A. Baklouti
DOI:10.1080/10426500600919447
日期:2007.1.1
The addition of 1-F-hexyl-2-bromoethanol and 2-F-hexyl-2-bromoethanol to aroxyor alkoxysulfonyl isocyanates in anhydrous ether allowed the preparation of the corresponding brominated F-alkyl carbamates. In the case of 1-F-hexyl-2-bromoethanol, the easy cyclization of carbamates to F-alkyl oxazolidin-2-ones was achieved by the action of triethylamine in refluxing acetone.
Obtention d'un nouvel isomére d'une bromohydrine F-alkylée
作者:S. Szönyi、M. Nasreddine、C. Coudures、A. Cambon
DOI:10.1016/0040-4039(91)80683-w
日期:1991.6
1 Bromo 2-hydroxy 2-F-hexyl ethane was obtained by opening of F-hexyl oxirane by means of Grignard reagents or by magnesium and lithium halides.