Mitsui Chemicals Agro, Inc.

Sankyo Agro Company, Limited

Munetsugu Morimoto

Nobuhiro Kondo

Hideki Umetani

Fumie Kajino

Toshiaki Ohara

Hideaki Ikishima

Yasushi Tamagawa

Harukazu Tanaka

Hiroyuki Komai

Seiya Sakurai

Hiroyuki Ito

Kota Fujiwara

Provided is a plant disease control composition that has a plurality of disease spectra against various plant pathogens and demonstrates superior control effects (synergistic control effects) that cannot be predicted from each component alone. The plant disease control composition comprises as active ingredients thereof at least one quinoline compounds represented by the following general formula: wherein, Rand Rrepresent, for example, optionally substituted alkyl groups or optionally substituted aryl groups, Rand Rrepresent, for example, hydrogen atoms, fluorine atom or methyl group, X represents, for example, a halogen atom or optionally substituted alkyl group, and Y represents a fluorine atom or methyl group, n is 0 to 2 and m is 0 or 1, or a salt thereof (group a), and one or more fungicidal compounds selected from group b.

Plant disease control composition and method for controlling plant disease by application of same

Provided are an efficient method for producing 3,4-dihydroisoquinoline derivatives and useful production intermediates thereof. Provided is a method for producing 3,4-dihydroisoquinoline derivatives represented by general formula (1), comprising converting a compound represented by general formula (3) in the presence of acid after reacting with an aniline derivative, or converting a compound represented by general formula (3) by reacting with an aniline derivative in the presence of an acid.

Method for producing 3,4-dihydroisoquinoline derivatives and production intermediates of same

The invention provides compounds which exert excellent fungicidal activities against various plant diseases and are useful as active ingredients of pesticides permitting the control of rice blast and so on even in low dosages. Compounds represented by the general formulae (1a) to (1d) or salts thereof: (1a) (1b) (1c) (or) (1d) wherein Rand Rare each Calkyl or the like; Rand Rare each hydrogen, halogeno, or the like; Ris hydrogen, Calkyl, or the like; X is halogeno, Calkyl, or the like; Y is halogeno, Calkyl, or the like; n is an integer of 0 to 4; and m is an integer of 0 to 6. 

3-(dihydro(tetrahydro)isoquinolin-1-yl)quinoline compound

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Yasu, Japan

Munetsugu Morimoto