Process for producing 2-chloro-5-trichloromethyl pyridine
First Claim
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1. In a process for producing 2-chloro-5-trichloromethyl pyridine by reacting β
- -picoline with chlorine, an improvement characterized by reacting β
-picoline with chlorine in a gaseous phase at 300°
to 500°
C. in the presence of an inert diluent selected from the group consisting of nitrogen, halogenated methanes, halogenated ethanes, halogenated ethylenes and mixtures thereof.
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Abstract
2-Chloro-5-trichloromethyl pyridine is produced by reacting β-picoline with chlorine in a gaseous phase at 300° to 500° C. in the presence of an inert diluent of nitrogen, a halogenated methane, a halogenated ethane a halogenated ethylene or a mixture thereof. 2-Chloro-5-trichloromethyl pyridine is useful as an intermediate for medicines, agricultural chemicals, dyes especially herbicides.
15 Citations
6 Claims
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1. In a process for producing 2-chloro-5-trichloromethyl pyridine by reacting β
- -picoline with chlorine, an improvement characterized by reacting β
-picoline with chlorine in a gaseous phase at 300°
to 500°
C. in the presence of an inert diluent selected from the group consisting of nitrogen, halogenated methanes, halogenated ethanes, halogenated ethylenes and mixtures thereof. - View Dependent Claims (2, 3, 4, 5, 6)
- -picoline with chlorine, an improvement characterized by reacting β
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Current AssigneeIshihara Sangyo Kaisha Limited
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Original AssigneeIshihara Sangyo Kaisha Limited
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InventorsNasu, Rikuo, Nishiyama, Ryuzo, Fujikawa, Kanichi, Yokomichi, Isao, Awazu, Takao, Kawashima, Junichi
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Primary Examiner(s)Rotman, Alan L.
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Application NumberUS06/075,022Time in Patent Office467 DaysField of Search546/345US Class Current546/345CPC Class CodesC07D 213/61 Halogen atoms or nitro radi...
