Koei Chemical Company, Limited

Toyo Umpanki Co., Ltd.

Osamu Uno

Koji Hirose

Koji Suenaga

Yasuhiro Shiomi

Takeshi Sunakami

Akio Ohta

A process is disclosed for preparing a heterocyclic aldehyde by oxidizing a heterocyclic alcohol with high selectivity and high yield. Specifically, the heterocyclic aldehyde is prepared by reacting a heterocyclic compound having at least one hydroxymethyl group bonded to a carbon atom of a heterocyclic ring with a hypohalogenous acid salt in the presence of a base to oxidize the hydroxymethyl group, wherein reaction is conducted in the co-presence of a 2,2,6,6-tetramethylpiperidine-1-oxyl derivative having at least two 2,2,6,6-tetramethylpiperidine-1-oxyl-4-yl groups.

Process for producing heterocyclic aldehyde

A restraining device for limiting forward movement of an operator of a wheeled mechanical vehicle in case of a collision includes two restraining bars pivotally mounted at opposite sides of a seat and extending toward one another. The restraining bars are mounted so as to pivot in a vertical plane about axes which are parallel to each other and lie on opposite sides of the seat. The restraining bars are synchronized or interlocked so that when one bar is raised or lowered by the occupant of the seat the other bar is also moved. A lock or retention device on one side of the seat holds the restraining bars in the lowered or raised position after they have been positioned by the occupant. The vehicle may be a forklift or front end loader and the run controls and load controls of the vehicle are interlocked with the synchronizing mechanism so that the run and load controls cannot be operated when the restraining bars are not in the occupant restraining position.

Seat occupant restraining device

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Osaka, Japan

Osamu Uno