3969-17-3Relevant academic research and scientific papers
Amide compound for promoting plant root growth and preparation method and application thereof
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, (2021/10/05)
The invention provides an amide compound for promoting plant root growth and a preparation method and application thereof. The amide compound has a structural general formula shown in the specification, wherein X is selected from C, S or O; wherein the R is selected from furyl, phenyl, alkoxy phenyl, benzyl, halogenated benzyl or alkyl benzyl. The preparation method of the amide compounds is simple, and experimental verification finds that the amide compounds XA-9, XA-19 and EZ-12 have the effect of promoting plant root growth; especially, the XA-9 and XA-19 can also improve the SOD enzyme activity and POD enzyme activity to improve the stress tolerance of plants, and various genes in a plant hormone signal transduction pathway can be improved, so that the growth and development of the plant are improved, and a foundation is laid for searching and genetic breeding improvement of a plant root system regulation marker gene.
Synthesis and characterization of poly(amideimide)s from 4-(p-carboxyphenoxy)phthalic anhydride and 4-(p-carboxybenzoyl)phthalic anhydride
Rajasekar,Venkatesan
, p. 5626 - 5633 (2013/10/21)
A series of poly(amideimide)s were prepared by the reaction of two new anhydride acidchloride monomers with aromatic diamines. 4-(p-Carboxyphenoxy) phthalic anhydride was synthesized by nucleophilic displacement reaction of N-methyl-4-nitrophthalimide with p-hydroxybenzoic acid, followed by hydrolysis. The tricarboxylic acid was converted to the corresponding anhydride acidchloride. 4-(p-Carboxybenzoyl)phthalic anhydride was synthesized by Friedel-Craft's acylation of toluene with N-phenylphthalimide-4- carbonylchloride, which was then converted to anhydride acidchloride of 4-(p-carboxybenzoyl)phthalic acid. The monomers were characterized by IR and NMR. Several PAI were prepared by the reaction of these anhydride acidchloride monomers with aromatic diamines. The inherent viscosities of the polymers were in the range of 0.42-0.58 dL/g. All polymers were soluble in polar aprotic solvents. The polymers showed good thermal stability and Tg values were in the range of 226-269 C. X-Ray diffractograms of polymers indicate amorphous nature of these polymers.
