Introduction to 2, 6-dichloroquinoxaline

2,6-Dichloroquinoxaline is an analogue of 3-amino-7-chloro-1,2,4-benzotriazine 1-oxide, an antimalarial agent.

Production method

The preparation method is to add 2-hydroxy-6-chloroquinoxaline, solvent and catalyst in the reactor, temperature rise to 90℃ drop and add sulphoxide chloride, the exhaust sulfur dioxide and hydrogen chloride absorption with water and lye, the drop is added at 110℃ reaction for 1 ~ 2 hours, atmospheric pressure dissolution, removal to 2/3 of the solvent, transfer to the crystallization tank crystallization, filtration, drying to the finished product.

use

2, 6-dichloroquinoxaline is an intermediate of the herbicide quinoline.

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