Nouveaux procédés de préparation des isocyanates F-alkylés linéaires ou ramifiés à partir des iodures de 2-F-alkyléthyle
摘要:
Isocyanates are extremely versatile compounds in organic synthesis, but their synthesis is not easy. One of the most convenient methods uses acids as intermediates. In the F-alkyl series, it is sometimes difficult to obtain them by a general way. We have managed an efficient synthetic route to F-alkyl acids through malonates from 2-F-alkylethyl iodides.
Synthèse d’acides α-aminés racémiques à chaı̂ne perfluoroalkylée
摘要:
The simple and effective syntheses of racemic alpha-amino-acids of general formula R-F(CH2)(n-1)Y (Y=CH(NH2)CO2H) (R-F=C6F13, C8F17; n=3,10) have been described, (C) 1999 Elsevier Science S.A. All rights reserved.