Synthesis and Bioactivity of poly N-phenylene-N'-aroylthiourea

Abstract:

Three novel poly N-phenylene-N-aroylthioureas (2a~c) were synthesized by the reaction of aryldiamines with terephthaloyl diisothiocyanate. Their structures were characterized by IR spectra and ¹HNMR. The preliminary biological activity tests showed that some compounds display effect in growth regulation of plants and fungicidal activity to some extent. The compound 2b has obvious growth promoting effect on Oryza sativa L.(rice), the growth promoting rate to 59.05% and 71.81% in the concentration of 10 mg·L^-1 and 100 mg·L^-1 respectively, and it has obvious inhibition to Echinochloa crusgalli L.(barnyard grass), the inhibition rate of more than 75% in the concentration of 0.1~100 mg·L^-1, and it has weak inhibition for the growth of Cucumis sativus L.(cucumber). The compound 2a has excellent crop safety and 2b has well selectivity for the test plants.

• Periodical: Applied Mechanics and Materials (Volumes 341-342)
• Pages: 351-354
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.341-342.351
• Online since: July 2013
• Authors: Wei Hong Wang, Hong Zhong, Dan Feng Guo, Guang Yi Liu
• Keywords: Aroylthiourea, Biological Activity, Polymer, Synthesis

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