Tetrahydrofuran derivatives
AssigneeMitsui Toatsu Chemicals, Inc.
InventorsTakeo Yoshimoto, Teruhiko Toyama, Keiichi Igarashi, Masaaki Ura, Yuji Enomoto, Yasunobu Funakoshi, Yoshikata Hojo
Life of this patent
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Abstract
A tetrahydrofuran derivative represented by the general formula ##STR1## wherein X.sub.1 and X.sub.3 represent a hydrogen or halogen atom, and X.sub.2 represents a halogen atom or a trifluoromethyl group. The compounds have excellent herbicidal activity and can be prepared by reacting a compound of the formula ##STR2## wherein R represents a nitro group or a group of the formula ##STR3## in which X.sub.1, X.sub.2 and X.sub.3 are as defined above, with 3-hydroxytetrahydrofuran in the presence of an alkali.
Claims8
A tetrahydrofuran derivative represented by the general formula ##STR8## wherein X.sub.1 and X.sub.3 represent a hydrogen or halogen atom, and X.sub.2 represents a halogen atom or a trifluoromethyl group.
A herbicidal composition comprising as an active ingredient a herbicidally effective amount of a tetrahydrofuran derivative of the formula ##STR9## wherein X.sub.1 and X.sub.3 represent a hydrogen or halogen atom, and X.sub.2 represents a halogen atom or a trifluoromethyl group and an inert carrier or vehicle.
Dependencies are inferred from the claim text.