Synthetic Methods and Reactions XII1. Preparation of α-Fluorocarboxylic Acids from α-Amino Acids via Diazotization in Polyhydrogen Fluoride/Pyridine Solution.
α-Monofluoroalkanoic acids are important intermediates in the synthesis of biologically active fluorine compounds. General methods of preparation have been examined, based on the three following reagents: (a) hydrogen fluoride + N-bromoacetamide; (b) diethyl monofluoromalonate; and (c) perchlorylfluoride. The first of these is the recommended procedure for simple unsubstituted α-fluoro acids; however, the
Synthetic methods and reactions. 63. Pyridinium poly(hydrogen fluoride) (30% pyridine-70% hydrogen fluoride): a convenient reagent for organic fluorination reactions
作者:George A. Olah、John T. Welch、Yashwant D. Vankar、Mosatomo Nojima、Istvan Kerekes、Judith A. Olah
DOI:10.1021/jo01336a027
日期:1979.10
Cavalleri,B. et al., Gazzetta Chimica Italiana, 1966, vol. 96, p. 227 - 252
作者:Cavalleri,B. et al.
DOI:——
日期:——
Machleidt,H., Justus Liebigs Annalen der Chemie, 1964, vol. 676, p. 66 - 75
作者:Machleidt,H.
DOI:——
日期:——
Chemistry of novel compounds with a multifunctional carbon structure. 5. Molecular design of versatile building blocks for aliphatic monofluoro molecules by manipulation of multifunctional carbon structure