Kao Soap Company, Ltd.

Masamoto Matsukane

Yoshiaki Inamoto

Naotake Takaishi

Tetsuji Iwasaki

Norioki Miyamoto

Tsuneyuki Takeno

Kyozaburo Tachibana

A tricyclo-.alpha.,.beta.-unsaturated aldehyde represented by the formula (I), ##STR1## wherein the group ##STR2## is attached to the exo side of the norbornane ring at the 8- or 9-position, R represents an alkyl group having 1 to 6 carbon atoms, and the dotted line between carbon 3 and carbon 4 represents a saturated or ethylenically unsaturated bond possesses odorous characteristics and is useful for perfume compositions.

Tricyclo-.alpha.,.beta.-unsaturated aldehyde

A herbicide which comprises at least one compound as an active ingredient of the formula (I); ##STR1## wherein X represents a halogen atom or an alkyl sulfinyl or alkyl sulfonyl group having 1 to 3 carbon atoms, n represents an integer of 0- 3, Y represents SO or SO.sub.2, and R represents a hydrogen atom or an alkyl group having 1 to 3 carbon atoms.

Herbicide

Growing community of inventors

Funabashi, Japan

Masamoto Matsukane