3099-51-2Relevant academic research and scientific papers
One-step synthesis of 3-dichloromethylpyridine from pyridine in the presence of iron-containing catalysts
Khusnutdinov,Baiguzina,Smirnov,Mukminov,Dzhemilev
, p. 1821 - 1824 (2007)
3-Dichloromethylpyridine was synthesized by reaction of pyridine with the system MeOH-CCl4-iron catalyst [FeBr2, Fe 3(CO)12, or iron(III) naphthenate]. Iron(II) bromide at a FeBr2-pyridine-CCl4-MeOH ratio of 1:100:200:200 showed the highest catalytic activity.
A 2 - chloro -5 - nitrapyrin preparation method
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Paragraph 0037-0038, (2019/03/15)
The invention discloses a 2 - chloro - 5 - trichloromethyl pyridine method, comprises the following steps: (1) the 3 - methyl pyridine is mixed with a solvent, the vaporization of the drops in the vaporization vessel, then in order to inert gas as a carrier gas, to form raw material steam; (2) dry Cl respectively2 The raw material and the steam is sent to the quartz tube catalyst [...] generating vapor phase chlorination reaction, reaction material after the condensation, rectification to obtain 2 - chloro - 5 - trichloromethyl pyridine. The invention relates to a 2 - chloro - 5 - trichloromethyl pyridine method, with raw materials are easy, low cost, easy to operate, simple process and the like.
