Nihon Bayer Agrochem, K.k.

Tatsuya Yamaoka

Toshio Goto

Seishi Ito

Chieko Ueno

Natsuko Minegishi

Katsuhiko Shibuya

Akihiko Yanagi

Yoshinori Kitagawa

Shin-ichi Narabu

Yoshiko Kyo

Fritz Maurer

Koichi Moriya

Kazuhiro Ukawa

Ryo Watanabe

The invention is related to a novel phenylacetylene derivates of formula:

Phenylacetylene derivatives

The invention is related to a novel phenylacetylene derivates of formula: ##STR1## wherein X represents hydrogen, halogen, optionally substituted C.sub.1-6 alkyl; Y represents hydrogen, halogen, cyano, nitro, optionally substituted C.sub.1-6 alkyl, C.sub.1-6 alkoxy, C.sub.3-8 cycloalkoxy, optionally substituted C.sub.1-6 alkylthio, C.sub.3-8 cycloalkylthio, C.sub.1-6 alkylsulfinyl, optionally substituted C.sub.1-6 alkylsulfonyl, C.sub.3-8 cycloalkylsulfonyl, C.sub.1-6 alkylsulfonyloxy, optionally substituted sulfonamide, optionally substituted carboxamide, etc., or Y may form together with Z which is bonded to the vicinal carbon atom a 5- or 6-membered ring; n is 0 or 1; Z represents hydrogen or halogen; m is 1 or 2; R represents hydrogen, halogen, C.sub.1-6 alkyl, tri(C.sub.1-6 alkyl)silyl, COOR.sup.c or CONR.sup.d R.sup.e ; Q represents a heterocyclic group, and their use as herbicid.

1-Azinyl-tetraozolinones of the following formulae (I) and (II): ##STR1## wherein R.sup.1 and R.sup.2 are independently represent alkyl, haloalkyl, cycloalkyl, alkenyl, haloalkenyl, alkynyl or optionally substituted phenyl, or

1-azinyl-tetrazolinones

1-cycloalkenyltetrazolinone derivatives of the following herbicidal formula ##STR1## R.sup.1 is cycloalkenyl which may optionally be substituted by halogen C.sub.1-4 alkyl, or bicycloalkenyl which may optionally be substituted by halogen or C.sub.1-4 alkyl, and

1-cycloalkenyltetrazolinones

A herbicide for paddy field comprising sulphonylaminophenyluracil derivative as an active ingredient which is represented by the formula (I): ##STR1## wherein R.sup.1 represents hydrogen or methyl,

Sulphonylaminophenyluracil herbicides for paddy field

Disclosed are herbicidal tetrazolinone derivatives, selective in paddy fields of the formula ##STR1## wherein X represents C.sub.1-4 alkyl,

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Tochigi, Japan

Tatsuya Yamaoka