Nissan Chemical Industries Limited

Hisayuki Watanabe

Kowichiro Saruhashi

Yasuo Kawamura

Hitoshi Furusho

Tsutomu Katsuki

Michito Tagawa

Yasuyuki Nakajima

Yuichi Goto

Shoichi Kondo

Hideki Musashi

Takashi Furusato

Masanori Nishioka

Michiaki Adachi

Yuki Nohara

Mitsugu Futagawa

Hiroshi Ohya

Described is a doping technique that forms a stable amorphous silicon film and a stable polycrystalline silicon film at a low temperature and simultaneously that imparts conductivity in an atmospheric pressure environment. A method for producing a compound containing a bond between different elements belonging to Group 4 to Group 15 of the periodic table, the method including: applying, at a low frequency and atmospheric pressure, high voltage to an inside of an electric discharge tube obtained by attaching high-voltage electrodes to a metal tube or an insulator tube or between flat plate electrodes while passing an introduction gas, so as to convert molecules present in the electric discharge tube or between the flat plate electrodes into a plasma; and applying the plasma to substances to be irradiated, the substances to be irradiated being two or more elementary substances or compounds.

Method for forming bond between different elements

[PROBLEMS] To provide an efficient process for producing an optically active chromene oxide compound which is an important intermediate for a benzopyran compound effective in the treatment of arrhythmia. [MEANS FOR SOLVING PROBLEMS] The process for producing an optically active chromene oxide compound comprises using an optically active titanium complex represented by, e.g., the formula (1) or (2) as a catalyst to asymmetrically oxidize an optically active chromene compound with high enantioselectivity in high chemical yield. 

Process for producing optically active chromene oxide compound

Process for producing an oxirane compound includes treating with hydrogen peroxide in the presence of either an olefin oxidation catalyst prepared from an organic compound or a polymer compound of formula (1) a tungstic acid compound, a phosphoric acid, hydrogen peroxide and a quaternary ammonium salt of formula (2) or (3) or an olefin oxidation catalyst prepared from an organic compound or a polymer compound of formula (1), a tungsten compound and a quaternary ammonium salt of formula (2) or (3). The process is useful especially industrially.

Heterogeneous catalyst and process for producing oxirane compound with the catalyst

&bgr;-diketonatocopper(I) complex containing allene compounds as ligand and process for producing the same

Cyclooctadiene derivatives

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Funabashi, Japan

Hisayuki Watanabe