Pyridine ethyoxyl coumarin plant growth regulator

A plant growth regulator, pyridine ethoxy technology, applied in the direction of plant growth regulators, plant growth regulators, biocides, etc., can solve the problem of undisclosed activity, achieve improved germination rate, superior comprehensive performance, prolong The effect of leaf life

Active Publication Date: 2017-05-31
QINGDAO UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the prior art, a kind of pyridine ethoxy coumarin plant growth regulat

Method used

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  • Pyridine ethyoxyl coumarin plant growth regulator
  • Pyridine ethyoxyl coumarin plant growth regulator
  • Pyridine ethyoxyl coumarin plant growth regulator

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0018] Example 1. Synthesis of compound of formula I

[0019] (1) Synthesis of compound of formula II:

[0020]

[0021] Add 12.3g (0.1mol) 2-pyridineethanol and 150mL ethyl acetate to a 250mL three-necked flask, while adding 11.1g (0.1mol) triethylamine as an acid binding agent, and add 13.7g (0.12 mol) Methanesulfonyl chloride, react in ice water bath for 5h. The completion of the reaction was monitored by thin-layer chromatography, washed with water three times, the organic layer was separated, dried with anhydrous sodium sulfate, and rotary evaporated to obtain 16.5 g of light yellow oily liquid with a yield of 82.0%.

[0022] (2) Synthesis of compound of formula I:

[0023]

[0024] Into a 250mL three-necked flask were sequentially added 16.2g (0.1mol) tetrahydroxycoumarin, 150mL toluene, 16.6g (0.12mol) potassium carbonate powder, and 24.1g (0.12mol) of the mixed solution of formula II compound and toluene was added dropwise. After completion, the temperature was raised and re...

example 2、10

[0027] Example 2. Preparation of 10% compound of formula I suspension:

[0028] Weigh 15g compound of formula I, 2g sodium lignosulfonate, 3g polycarboxylate dispersant Sokalan CP 5 (maleic acid-acrylic acid sodium salt), 1g silicone emulsion defoamer (THIX-108 water-based silicon emulsion Foaming agent), 2g magnesium aluminum silicate and 5g ethylene glycol in a 250mL beaker, add 77g water, stir evenly, grind with a sand mill for 2h, rotate at 3000 rpm, detect particle size 3-5μm, get white fluidity Suspending agent.

[0029] Bioassay Examples

example 3

[0030] Example 3. Seed germination experiment

[0031] Use paper bed germination method. Formula I compound citrate and DA-6 were prepared into 5% aqueous solution, respectively, diluted with distilled water to the concentration of 10μg / mL, 20μg / mL, 30μg / mL, 60μg / mL and 120μg / mL plant growth regulator 剂solution. Select wheat seeds with uniform grain size and fullness, sterilize the seeds with hypochlorous acid solution, soak the seeds in the above-mentioned diluent in a beaker and incubate for 8 hours, and process 100 seeds every time, repeat 3 times. After treatment, place the seeds evenly Keep a certain distance between the seeds in a double-layer filter paper petri dish. After placing the seeds, place them in a fully intelligent climate box for heat preservation and germination treatment at 25°C. During the period, add distilled water regularly to keep the filter paper moist. The germination condition of the treatment, the length of the embryo is about 1 / 2 of the seed length ...

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Abstract

The invention discloses a pyridine ethyoxyl coumarin compound with a structure shown as a formula I, and the pyridine ethyoxyl coumarin compound serves as a plant growth regulator. The compound shown as the formula I has excellent effects of promoting germination and rooting, increasing the yield and improving the quality and can be widely used for increasing the yield or improving the survival rate in agriculture or forestry.

Description

Technical field [0001] The invention belongs to the field of plant growth regulators in pesticides, and particularly relates to a pyridine ethoxycoumarin plant growth regulator. Background technique [0002] Plant growth regulators control seed germination and dormancy, promote rooting, promote cell elongation and division, control lateral buds or tillers, control plant type, control flowering, induce seedless fruits, thin flowers and fruits, control fruit drop, control fruit shape or During maturity, it has an active role in enhancing stress resistance (disease resistance, drought resistance, salt resistance, frost resistance), increasing nutrients, improving the color and taste of fruits, and enhancing the ability to absorb fertilizer. [0003] Plant growth inhibitors inhibit the growth of apical meristems, causing plants to lose their apical advantage, with many side branches, small leaves, and reproductive organs are also affected. Natural plant growth inhibitors include absci...

Claims

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Application Information

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IPC IPC(8): C07D405/12A01N43/40A01P21/00A01P3/00
CPCA01N43/40C07D405/12
Inventor 许良忠张明明胡娆崔建强王明慧
Owner QINGDAO UNIV OF SCI & TECH
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