61446-87-5Relevant academic research and scientific papers
Synthesis method of 5,5,5-trichloro-2-methyl-2-pentene
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Paragraph 0022; 0024, (2019/06/30)
The invention provides a synthetic method of 5,5,5-trichloro-2-methyl-2-pentene. The synthetic method comprises the following steps: taking 2-methyl-3-butene-2-ol as an initial compound of a reaction;adding a haloid acid into the reaction system, and conducting distilling to obtain an intermediate product 1-halo-3-methyl-2-butene; adding the intermediate product and chloroform into a reaction kettle, conducting stirring at a low temperature, and adding an inorganic base into the system in batches; wherein the reaction temperature is 0-40 DEG C, the reaction time is 2-10 hours, the mass ratioof the 2-methyl-3-butene-2-ol to the haloid acid in the reaction is (0.3-1):1, the weight ratio of the chloroform to the 1-halo-3-methyl-2-butene is (1-10):1, and the weight ratio of the inorganic base to the 1-halo-3-methyl-2-butene is (0.1-2.0):1. The method is high in reaction yield and low in environmental pollution degree, and the corrosion degree of equipment is reduced.
Process for the preparation of dienes
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, (2008/06/13)
A process for the preparation of a diene of the formula STR1 in which X and Y are independently fluorine, chlorine or bromine Which comprises contacting a 1,1,1-trihalo-4-methyl-4-hydroxypentane of the formula STR2 in which X and Y have the previously assigned significance and Z is a chorine or bromine atom With a dehydrohalogenating agent and a dehydration agent.
1,1,1-Trihalogeno-4-methylpentenes, method of preparing the same and use of the same in the preparation of 1,1-dihalogeno-4-methyl-1,3-pentadienes
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, (2008/06/13)
1,1,1-Trihalogeno-4-methyl pentenes and 1,1-dihalogeno-4-methyl-1,3-pentadienes are produced. These compounds are of value as intermediates for the production of pyrethrin analogs which are of use as insecticides or agricultural chemicals.
