Methyl bromide thiol methylation of mercapto group of 4-amino-6-

Details Methyl bromide thiol methylation of mercapto group of 4-amino-6- Methyl bromide thiol methylation of mercapto group of 4-amino-6-

1976-07-26

1977-07-12

Ford, John M.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07D25306

Patent

active

040353648

ABSTRACT:
In the methylation of 4-amino-6-t.-butyl-3-mercapto-1,2,4-triazin-5-one to produce 4-amino-6-t.-butyl-3-methylmercapto-1,2,4-triazine-5-one using methyl bromide, the reaction is run in the absence of air whereby product coloration is avoided. Desirably considerable agitation is employed along with recycle and especially with an emulsifying agent which markedly speeds up the reaction. Measures such as operating under a slight vacuum and recycle of unused methyl bromide and mother liquor are employed to improve the yield and to avoid the problems of discharging the bromides to the environment.

REFERENCES:
patent: 3897429 (1975-07-01), Haglid

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