220903-06-0Relevant articles and documents
Amphiphilic molecule containing o-nitrobenzyl ester photo-degradation group
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, (2019/08/20)
The invention discloses a novel photodegradable amphiphilic molecule and a synthetic method thereof, and belongs to the field of surfactants. The synthetic method comprises the five steps that (1) diethylenetriamine pentaacetic acid is taken as a raw material, acetic anhydride is taken as a dehydrating agent, and pyridine catalytic dehydration is performed to produce diethylenetriamine pentaaceticdianhydride; (2) methylene of 6-nitropiperonal is removed under the action of aluminum chloride and hydrobromic acid; (3) 4,5-dihydroxy-2-nitrobenzaldehyde and bromoalkane are subjected to an etherification reaction under an alkaline condition; (4) the 4,5-dihydroxy-2-nitrobenzaldehyde is reduced to 4,5-dihydroxy-2-nitrobenzyl alcohol under the action of a reducing agent; (5) the 4,5-dihydroxy-2-nitrobenzyl alcohol and the excess diethylenetriamine pentaacetic dianhydride are subjected to an esterification reaction to obtain the o-nitrobenzyl ester amphiphilic molecule. The novel photodegradable amphiphilic molecule and the synthetic method thereof have the advantages that the reaction condition of an o-nitrobenzyl alcohol derivative and the diethylenetriamine pentaacetic dianhydride is mild, the excess diethylenetriamine pentaacetic dianhydride is used for reducing the occurrence of side reactions, and the amphiphilic molecule has good ultraviolet photodegradability.
