Rapid Synthesis of Aromatic Polyamides by Microwave-Assisted Directed Polycondensation of Aromatic Diamines with Aromatic Dicarboxilic Acids
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چکیده
منابع مشابه
Microwave-assisted Cu-catalyzed protodecarboxylation of aromatic carboxylic acids.
An effective protocol has been developed that allows the smooth protodecarboxylation of diversely functionalized aromatic carboxylic acids within 5-15 min. In the presence of at most 5 mol % of an inexpensive catalyst generated in situ from copper(I) oxide and 1,10-phenanthroline, even nonactivated benzoates were converted in high yields and with great preparative ease.
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N-alkoxybenzyl aromatic polyamides were synthesized by polycondensation of N-alkoxybenzyl aromatic diamine with equimolar dicarboxylic acid chloride in the presence of 2.2 equiv. of pyridine at room temperature for 2 days. The obtained polyamides were mainly cyclic polymers, as determined by means of matrix-assisted laser desorption ionization time-of-flight (MALDI-TOF) mass spectrometry, and s...
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Figure 1: Directed aromatic functionalization methods. The title of this Thematic Series brings to the minds of most organic chemists the beautifully logical aromatic electrophilic substitution (SEAr) [1-5] and, to a lesser extent, nucleophilic aromatic substitution (SNAr) [2,6,7] reactions as taught to many generations of students in their first organic chemistry courses [8] (Figure 1). Being ...
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ژورنال
عنوان ژورنال: Polymer Journal
سال: 1993
ISSN: 0032-3896,1349-0540
DOI: 10.1295/polymj.25.209