Multistep synthesis for certain 1,3,4-thiadiazoles and intermedi

Details Multistep synthesis for certain 1,3,4-thiadiazoles and intermedi Multistep synthesis for certain 1,3,4-thiadiazoles and intermedi

1973-08-13

1976-01-13

Gallagher, R.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

2602471M, C07D27752

Patent

active

039324370

ABSTRACT:
The industrial herbicide 5-(1,3,3-trimethylureido)-N,N-dimethyl-1,3,4-thiadiazole-2-sulfonamide and other compounds of similar structure may be made by a novel procedure in which the first step is the oxidative chlorination of a 2-alkylamino-5-mercapto-1,3,4-thiadiazole to yield the corresponding sulfonyl chloride. The subject compound which possesses five methyl substituent groups is more effective as a herbicide than compounds which contain other alkyl substituents or a lesser number of methyl substituents.

REFERENCES:
patent: 2744907 (1956-05-01), Young
patent: 3033901 (1972-05-01), Song
patent: 3726892 (1973-04-01), Cebalo
Wagner et al., Synthetic Organic Chemistry, N.Y.C., John Wiley & Sons, 1953, pp. 645, 647 and 821-823.

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