Chugai Seiyaku Kabushiki Kaisha

Masanori Okada

Yasushi Murakami

Hiroshi Sugiyama

Masaki Takeuchi

Yoshitaka Iwane

Norio Shirakawa

Hiromi Tomioka

Masuo Koizumi

Masahiro Yoshimoto

Keizo Hosoda

Tetsuo Takematsu

Yoshikazu Kumagai

Kunihiko Togashi

Novel 4H-3,1-benzoxazine derivative of the formula: ##STR1## wherein X and Y each independently represent a halogen atom of a lower alkyl group; m and n each independently represent an integer of 0 to 2, and when m or n is 2, the plurality or each of X or Y may have the same or different meanings; R is a hydrogen atom, an alkyloxy group, an alkynyloxy group, an alkylthio group or an alkenylthio group, and a process for their production are provided. The compounds are highly effective against pathogenic fungi while being well tolerated by cultivated plants.

4H-3,1-benzoxazine derivatives, process for producing the same and

Novel acetal compounds of the formula: ##STR1## wherein X is a halogen atom, a trifluromethyl group or a lower alkyl group; Y is a halogen atom, a lower alkyl group or a lower alkyloxy group; m and n each independently are an integer of 0 to 2, and when m or n is 2, the plurality of each of X or Y may have the same or different meanings; R.sub.1 and R.sub.2 independently represent a saturated or unsaturated lower hydrocarbon residue, or R.sub.1 and R.sub.2 together form a substituted or unsubstituted alkylene chain which, when taken together with ##STR2## to which they are attached, form a ring structure, and a process for their production are provided. The compounds are highly effective against pathogenic fungi while being well tolerated by cultivated plants.

Fungicidal isonicotinanllide retals, their compositions and method of

A plant growth regulator containing as an active ingredient one or more compounds represented by the formula ##STR1## wherein R, X, Y and Z are defined in the specification is disclosed. The plant growth regulator is effective for a wide variety of plants, particularly for grassy plants. In addition to such activity, the regulator of this invention acts on plants to thicken the foliage and to aid health growth without causing substantial phytotoxicity.

Plant growth regulator

Isonicotinanilide derivatives of the formula ##STR1## (wherein R.sub.1 is a hydrogen atom or a lower alkyl group; X is a halogen atom or methyl; n is an integer of from 0 to 2; R.sub.2 is phenyl, halo-substituted phenyl or a lower alkyl group; and Q is ##STR2## provided that Q is ##STR3## or --CH.sub.2 --when R.sub.2 is phenyl or halo-substituted phenyl, and Q is ##STR4## when R.sub.2 is a lower alkyl group) a process for preparing the same and a plant growth regulator containing the same are disclosed. The derivatives of the formula above have good activity for regulating the growth of various plants, especially of grassy plants.

Isonicotinanilide derivatives, plant growth regulating compositions and

There are provided novel urea derivatives of the general formula ##STR1## wherein X, n, A and R are defined in the description; processes for preparing the derivatives and herbicidal composition containing as active ingredient the derivative. The derivatives have highly selective herbicidal activities.

Urea derivatives and highly selective herbicidal compositions containing

A urea derivative represented by the formula ##STR1## wherein X and n are defined hereunder, a process for preparing said derivatives and a herbicidal composition containing the same are disclosed.

Growing community of inventors

Niiza, Japan

Masanori Okada