Nippon Kayaku Kabushiki Kaisha

Hiroshi Hayami

Yasuo Kuroda

Katsutoshi Takahashi

Sumio Yoda

Hiroyoshi Nowatari

Masahiko Yabuuchi

Minoru Masuda

Masashi Hashiba

Hiroshi Akanuma

Tsuneo Nakamura

Kazuo Katoh

Shigeru Tajima

Masachika Hirayama

Tomoko Takezawa

Hitoshi Shimizu

Kenji Koshi

Makoto Kikuchi

A present invention relates to a method for quantitatively determining sugar-alcohols characterized by passing test samples containing sugar-alcohols, proteins, and saccharides through a column filled with basic anion-exchange resins which have a protein-removing ability and a saccharide-removing ability, and then quantitaing the sugar-alcohols in the effluent out of the column, a column filled with said resins and an aqueous solution of boric acid, and a kit. Sugar-alcohols such as 1,5-anhydroglucitol and the like have been calling attention as markers for diabetes mellitus recently.

Method for quantitatively measuring sugar-alcohol, column and kit

A diamine platinum (II) complex represented by the general formula ##STR1## [wherein R.sub.1 and R.sub.2 are each a lower alkyl group; and two X's are each a halogen atom or jointly form a group represented by ##STR2## (wherein R.sub.3 and R.sub.4 are each a hydrogen atom or a lower alkyl group) or a group represented by ##STR3## (wherein m is 1 or 2)].

Platinum complexes

A diamine platinum (II) complex represented by the general formula ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are each a hydrogen atom or a lower alkyl group; and two X's are each a halogen atom or jointly form a group represented by ##STR2## wherein R.sub.5 and R.sub.6 are each a hydrogen atom or a lower alkyl group of a group represented by ##STR3## wherein m is 1 or 2.

Novel platinum complexes

A diamine platinum (II) complex represented by the general formula ##STR1## [wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are each a hydrogen atom or a lower alkyl group; and two X's are each a halogen atom or jointly form a group represented by ##STR2## (wherein R.sub.5 and R.sub.6 are each a hydrogen atom or a lower alkyl group) or a group represented by ##STR3## (wherein m is 1 or 2)].

Platinum Complexes

A process for producing polychlorobenzonitrile having chlorine atoms at the 2,6-position by ammoxidation of toluene derivative having chlorine atoms at the 2,6-position with a gas containing ammonia and oxygen in vapor phase in the presence of a catalyst, characterized in that bromine and/or a bromine-containing compound is added to the reaction system.

Process for producing polychlorobenzonitrile

A process for the production of aromatic nitrile having the formula (I) ##STR1## wherein X represents a chlorine, bromine, iodine or fluorine atom and n is 1 or 2, By contacting aromatic compound having the formula (II) ##STR2## wherein X and n are as defined above, with ammonia and molecular oxygen in the vapor phase in the presence of a catalyst having the following composition:

Process for the production of aromatic nitriles

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Takasaki, Japan

Hiroshi Hayami