Novel 1-Trifluoromethyl Substituted 1,2-Ethylenediamines and Their use for the Synthesis of Fluoroquinolones
作者:Alexander Ya. Aizikovich、Maxim V. Nikonov、Michael I. Kodess、Vladislav Yu. Korotayev、Valery N. Charushin、Oleg N. Chupakhin
DOI:10.1016/s0040-4020(00)00107-1
日期:2000.3
A common approach to the synthesis of 1-trifluoromethyl-1,2-ethylenediamines was developed. Based on these original building blocks the new derivatives of N-substituted fluoroquinolones bearing the trifluoromethyl group were obtained. Through-space transmitted coupling constants (7)J(F-F) between the trifluoromethyl group and F-8 were measured in the F-19 NMR spectra of all fluoroquinolones examined and assigned unequivocally by using F-19F-19} double resonance technique. (C) 2000 Elsevier Science Ltd. All rights reserved.
N-Substituted α-trifluoromethyl β-nitro amines in the synthesis of fluorine-containing 1,2-diamines, amino alcohols, and β-amino acids
作者:V. Yu. Korotaev、A. Yu. Barkov、M. I. Kodess、I. B. Kutyashev、P. A. Slepukhin、A. Ya. Zapevalov
DOI:10.1007/s11172-009-0257-2
日期:2009.9
Reactions of 2-diazo-1,1,1-trifluoro-3-nitropropane or 1-trifluoromethyl-2-nitroethenes with amines and amino alcohols afforded N-mono- and N,N-disubstituted α-trifluoromethyl β-nitro amines, which were used to obtain a number of trifluoromethyl-containing 1,2-diamines, amino alcohols, and β-amino acids.