Keywords Polyacrylonitrile fiber · l -Lysine · Supported catalyst · Knoevenagel condensation · Flow chemistry 1 Introduction Nowadays, more and more small organic molecules were used as catalysts instead of enzymes and metals to catalyze Electronic supplementary material The online version of this organic reactions . Among them, amino acids including article (https://doi.org/10.1007/s10562-017-2287-y) contains l -proline , phenylalanine , alanine and isovaline , supplementary material, which is available to authorized users. as natural and environmentally benign compounds, have Extended author information available on the last page of the article Vol.:(0123456789) 1 3 814 P. Li et al. been demonstrated to be effective catalysts for many reac- 2.2 Apparatus and Instruments tions, such as aldol reaction [3, 5], Mannich reaction [6, 7], 1 13 Michael addition [8, 9], Knoevenagal condensation [10, 11] H NMR (400 MHz) and C NMR (101 MHz) spectra and so on [1, 12]. were recorded using CDCl as a solvent and TMS as Knoevenagal condensation, which is the condensation of an internal standard on a Bruker Avance III (400 MHz) aldehydes or ketones with the compounds containing active spectrometer. FT-IR spectra were obtained using a Bruker methylene under the base catalysis to create α,β-unsaturated ALPHA spectrophotometer. Elemental analysis was carbonyl compounds and their analogues, is
Catalysis Letters – Springer Journals
Published: Jan 18, 2018
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