Sankyo Company, Limited

Hiroyuki Itoh

Hideo Takeshiba

Hiroshi Ohta

Hiroshi Yasuda

Kazuo Sato

Toshiyuki Konosu

Sadao Oida

Noriko Takeda

Hisaki Kajino

Junzo Tobitsuka

Yukiyoshi Takahi

Shigehiro Kato

Chiaki Imai

Compounds of formula (I): ##STR1## �wherein: R.sup.1 represents halogen, alkyl, haloalkyl, alkoxy, haloalkoxy, cycloalkyl, or cycloalkyloxy; R.sup.2 represents hydrogen or halogen; R.sup.3 represents hydrogen, alkyl, or cycloalkyl; and the dotted line represents a single or double carbon--carbon bond!; and salts thereof have valuable fungicidal activities which make them of considerable value in agriculture and horticulture.

Tricyclic compounds having fungicidal activity, their preparation and

Compounds of formula (I): ##STR1## [in which: R.sup.1 and R.sup.2 are hydrogen or alkyl, or together are cycloalkyl; R.sup.3 and R.sup.4 are hydrogen, alkyl or phenyl, or together are cycloalkyl; or R.sup.1 and R.sup.3 together are cycloalkyl fused to the oxetane ring; Ar is phenyl substituted by R.sup.5, R.sup.6 and R.sup.7, where R.sup.5, R.sup.6 and R.sup.7 are hydrogen, halogen, alkyl, alkoxy, halogenated alkyl or halogenated alkoxy; and R.sup.8 and R.sup.9 are hydrogen or alkyl] and salts thereof have valuable agricultural and pharmaceutical anti-fungal or fungicidal activity. They may be prepared by a variety of processes.

Oxetane derivatives and their use as anti-fungal or fungicidal agents

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Shiga, Japan

Hiroyuki Itoh