Bis-imido carbonate sulphones
US4650893A · kind A · utility
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3Claims
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Key dates
| Filing date | Jul 10, 1985 |
| Grant date | Mar 17, 1987 |
| Priority date | — |
| Expiry date | Jul 10, 2005 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D513/04
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
BIS-Imido carbonate sulphones of the formula: ##STR1## in which R represents phenyl which is unsubstituted or substituted by one or two substituents, which is the same or different, selected from methyl, trifluoromethyl, nitro and cyano groups, and chlorine, flourine and bromine atoms, and p represents the integer 1, are produced by reacting a compound of formula VI ##STR2## in which R is as defined above, with thionyl chloride in the presence of an organic base. The compounds of formula II are useful in the production of 1, 2, 4, 6-thiatriazines.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.