Synthesis And Biological Activity Test Of The New Plant Growth Regulator

In recent years, the demand of the world of agriculture for plant growth regulator have been bigger and bigger, many research institutions have to be included in research focus, and obtained a series of plant growth regulators which are easy to use and has a certain biological activity. Through literature reviewing and summarizing the research of others, in compliance with the premise of the new pesticide discovery, through imitation, transformation I synthesized a series of new plant growth regulators, and used mass spectrometry and NMR detection means to verify their structure, through a large number of biological activity tests, selected a few of plant growth regulator varieties whcic have high biological activity.Forty-six kinds of new plant growth regulators in four series were designed and synthesized in this article:(1)the derivatives of auxin; (2) N-R2 acid amide 1,8-naphthalocyanine hydrazono; (3) urea sulfonates;(4)salts of phosphate potassium. Their structural formulas are listed below.From (1), we selected cinnamamide diquaternary-N which has good auxin activity by wheat germination experiment and soaking test; from (3) and (4), we selected 1-(3,4-dichlorophenyl)-3-(pyridin-3-yl) urea sulfonates,1-(3,4-dichloro-phenyl)-3-(1-R3 group-1H-pyrazolo [3,4-b] pyridin-3-yl) urea sulfonates and potassium 2-(1,3-dioxo-lH-benzo[de]isoquinolin-2(3H)-yl)ethyl phosphate which have good cytokinin activity by cucumber cotyledon expansion test.