تفاعل #346681

معادلة التفاعل

2-nitro-4,6-dichloro-5-methylphenol

4-chloro-5-methyl-phenol

sulphuric acid

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2-sulpho-4-chloro-5-methylphenol

ظروف التفاعل

المعالجة

1. 1
   أخرىis provided a process

الإجراء التجريبي

According to the present invention there is provided a process for preparing 2-nitro-4,6-dichloro-5-methylphenol comprising sulphonation of 4-chloro-5-methyl-phenol with concentrated sulphuric acid at elevated temperature to form 2-sulpho-4-chloro-5-methylphenol, thereafter diluting the reaction mixture with water to a sulphuric acid content of 20 to 30%, chlorinating the resulting 2-sulpho-4-chloro-5-methylphenol with chlorine at elevated temperature and normal or elevated pressure to form 2-sulpho-4,6-dichloro-5-methylphenol and reacting the 2-sulpho-4,6-dichloro-5-methylphenol with nitric acid.

المصدر