Japan Tobacco Inc.

Fuji Flavor Co., Ltd.

Mikio Ono

Hajime Matsushita

Takashi Ebata

Hiroshi Kawakami

Koshi Koseki

Hisashi Kodama

Tatsuji Chuman

Keiko Mochizuki

Akio Ohnishi

Masahiro Kohno

Method for manufacturing 4-substituted-Y-lactone and novel substance

A method for producing (R,Z)-5-tetradecen-4-olide, comprising the following reaction formulas; ##STR1##

Method for producing (R,Z)-5-tetradecen-4-olide

An attractant having attraction activity for to Tribolium confusum J., which contains 2,6-dimethyl-1-octanol as a component exhibiting an attraction activity. 2,6-dimethyl-octanol can be diluted with an appropriated solvent, or carried by an appropriate solid-phase carrier in the form of tablets. The attactant can be effectively used in lure trapping.

Method of attracting Tribolium confusum J. using 2,6-dimethyl-1-octanol

A 2,3-dihydro-2,3,5-trimethyl-4H-pyran-4-one derivative represented by general formula: ##STR1## where R is ##STR2## --CH(OCH.sub.3).sub.2, --CH(OC.sub.2 H.sub.5).sub.2, --CHO, --CH.sub.2 OH, --CH.dbd.CH.sub.2, .dbd.CHCH.sub.2 CH.sub.3, --CH.dbd.CHCH.sub.3 or ##STR3## The derivative is useful as a sex attractant for drugstore beetles.

2,3-dihydro-2,3,5-trimethyl-4H-pyran-4-one derivative and sex attractant

Growing community of inventors

Hamura, Japan

Mikio Ono