Fluorobenzene derivatives
AssigneesSagami Chemical Research Center, Kaken Pharmaceutical Co., Ltd.
InventorsKenji Hirai, Tomoyuki Yano, Mitsuo Yamashita, Emiko Ejiri, Tomoko Tateno, Kiyomi Aizawa
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Abstract
Disclosed are fluorobenzene derivatives, which are important intermediates for producing herbicidal oxazolidinedione derivatives, and methods of producing them. The fluorobenzene derivatives include compounds of a formula (11): ##STR1## where X is a halogen atom, R.sup.3 is a nitro, amino or isocyanato group or R.sup.1 OCONH, and R.sup.1 is an alkyl or phenyl group. Via the intermediates of the invention, oxazolidinedione derivatives can be produced with high yield.
Claims2
A compound of the formula (11) ##STR42## where X represents a halogen atom.
Dependencies are inferred from the claim text.