2-(3,4-dichloro-phenoxy) ethyl triethyl amine halide and preparation method and application thereof
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A technology of ethyl triethyl amine halide and ethyl triethyl halide amination amine, which is applied in the field of agrochemicals, can solve the problems of reduced use efficiency and poor water solubility, and achieve less application amount, low production and use costs, and low cost of raw materials. Easy to get effect
Active Publication Date: 2020-01-17
HIGH & NEW TECH RES CENT OF HENAN ACAD OF SCI
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Among them, DCPTA has a broad-spectrum production-increasing effect, but its water solubility is poor. It is generally used after forming a salt with citric acid, and the use efficiency is reduced.
[0004] Design and synthesis of a new type of plant growth regulator 2-(3,4-dichloro-phenoxy)ethyltriethylamine halide, and study its performance, is conducive to the development of new type of plant growth regulator to promote the growth of crops, which has not been seen so far Literature report
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Embodiment 1
[0020] Example 1 Preparation of 2-(3,4-dichloro-phenoxy)ethyltriethylammonium bromide
[0021] (1) Preparation of 2-(2-bromoethoxy)-3,4-dichlorobenzene
[0022] In a 1L autoclave, add 106.0 g of 3,4-dichlorophenol, 440 g of 1,2-dibromoethane, 1.5 g of 1-butyl-3-methylimidazolium bromide, and 30% by mass of hydrogen Sodium solution 260g. Heated to 100°C and reacted for 9h. Cool down to room temperature, transfer the feed liquid into a separatory funnel, let stand to separate layers, collect the organic layer, add a small amount of dilute lye and stir thoroughly, let stand to separate the liquid, and recover excess 1,2-dibromoethane by rotary evaporation of the organic layer 320 g, and 149 g of the intermediate 2-(2-bromoethoxy)-3,4-dichlorobenzene was collected by distillation under reduced pressure, with a yield of 85%.
[0023] (2) Preparation of 2-(3,4-dichloro-phenoxy)ethyltriethylammonium bromide
[0024] In a 0.5L autoclave, 134 g of intermediate 2-(2-bromoethoxy)-3,4...
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Abstract
The invention belongs to the technical field of agrochemistry and relates to a novel plant growth regulator 2-(3,4-dichloro-phenoxy) ethyl triethyl amine halide compound and a preparation method and application thereof. The structure of the compound is shown in the following formula: X represents halogen. The biological activities of the compound are tested on monocotyledonous wheat and dicotyledonous soybean respectively. The results show that the compound has obvious plant growth promoting effect at low concentration and certain inhibiting effect at high concentration. The compound is a broad-spectrum plant growth regulator. And the production process is simple, industrial production is easy to realize, and a new choice is provided for the plant growth regulator.
Description
technical field [0001] The invention relates to the technical field of agrochemicals, in particular to 2-(3,4-dichloro-phenoxy)ethyltriethylamine halide, a preparation method thereof and an application as a plant growth regulator. Background technique [0002] Plant growth regulators can regulate and control different stages of plant growth and development, such as germination, rooting, cell elongation, organ differentiation, flower bud differentiation, flowering, fruiting, defoliation, dormancy, etc. Some of them can increase the protein and sugar content of plants, some can change their shape, and some can enhance the ability of plants to resist cold, drought, salinity and pests. [0003] Plant growth regulators can be obtained by artificial synthesis, the cost is relatively low, and the application is more convenient, for example, production-increasing amine (DCPTA), diethyl diethylhexanoate (DA-6), sodium nitrophenolate, fenfenzuron and so on. Among them, DCPTA has a br...
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