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Boric acid catalyzed condensation reaction of aromatic aldehydes and biological activity of imidazole compounds

Author: LvDongXu
Tutor: BaiYinJuan
School: Northwestern University
Course: Chemistry
Keywords: Boric acid Aromatic aldehydes Catalytic
CLC: O621.25
Type: Master's thesis
Year: 2010
Downloads: 104
Quote: 1
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Abstract


Green Chemistry for research purposes to eliminate environmental pollution, and improve the efficiency of the reaction and atom economy , reduce energy consumption , which is one of the key development direction of modern chemistry . Boric acid does not burn easily , easy to control , low toxicity , is a typical environment -friendly catalyst . Boric acid has been reported used to catalyze a variety of types of chemical reactions such as ester exchange reaction , Friedel -Craft reactions and Michael reactions . This paper the use of boric acid catalytic reaction of aryl aldehyde , the results are as follows : 1 . Synthesis of imidazole derivatives Synthesis and Antibacterial trisubstituted and tetrasubstituted three series of 24 aryl imidazole derivatives , of which 7 have not been reported . Examine the solvent, reaction temperature and the substituent on the reaction and to determine the optimal reaction conditions for such reactions . Examined the inhibitory activity of all compounds of four fungi , the results indicate that such compounds early blight on tomato and tobacco brown spot with good inhibitory effect . 2.α- aminonitrile synthesis synthesis of two series of 14 - α-amino nitrile compound, wherein the two kinds have not been reported . Examine the influence of the solvent, reaction temperature and catalyst on the reaction , the reaction conditions were optimized . 3.β- amino ketone synthesis Synthesis of a series of five kinds of β-amino ketone compounds are unknown in literature and reaction conditions were optimized .

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CLC: > Mathematical sciences and chemical > Chemistry > Organic Chemistry > Organic Chemistry general issues > Properties of organic compounds > Chemical properties of organic reactions
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