Synthesis of 2-(methysulfonyl)-5-(trifluoro-methyl)-,3,4-thiadia

Details Synthesis of 2-(methysulfonyl)-5-(trifluoro-methyl)-,3,4-thiadia Synthesis of 2-(methysulfonyl)-5-(trifluoro-methyl)-,3,4-thiadia

1997-12-12

1999-01-05

Gerstl, Robert

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D285125

Patent

active

058564993

ABSTRACT:
The present invention provides a process for making thiadiazole sulfones. The present process is used to make 2-(methylsulfonyl)-5-(trifluoromethyl)-1,3,4-thiadiazole. 2-(Methylsulfonyl)-5-(trifluoromethyl)-1,3,4-thiadiazole is made using catalytic oxidation in the presence of a suitable oxidizing agent. The catalyst used for the oxidation reaction is glacial acetic acid.

REFERENCES:
patent: 3562284 (1971-02-01), Newman et al.
patent: 5147443 (1992-09-01), Diehr
Weygand Preparative Organic Chemistry pp. 667-668, 1972.
Durst T., in Comprehensive Organic Chemistry Chapter 11.6 Barton and Ollis, Eds., Pergammon Press, Oxford, (month unavailable) 1979.

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