Central Glass Company, Limited

Masataka Fujimoto

Mikihiro Takahashi

Akihiro Ishii

Satoru Miyazawa

Michitaka Ootani

Takayoshi Morinaka

Naoto Takada

Takashi Ootsuka

Wataru Kawabata

Shoichi Tsujioka

Makoto Kubo

Masutaka Shinmen

Hideyuki Tsuruta

Takako Yamazaki

Hiroki Matsuzaki

Junji Negishi

Kenta Yamamoto

Fumiyoshi Yoshikawa

Masanori Tsukamoto

Yoshikazu Sugimori

To provide a material suitable for a nonaqueous electrolyte battery having high-temperature durability. An ionic complex of the present invention is represented by any of the following formulae (1) to (3). For example, in the formula (1), A is a metal ion, a proton, or an onium ion; M is any of groups 13 to 15 elements. Rrepresents a Cto Chydrocarbon group which may have a ring, a heteroatom, or a halogen atom, or &#x2014;N(R)&#x2014;. Rat this time represents hydrogen atom, alkali metal atom, a Cto Chydrocarbon group which may have a ring, a heteroatom, or a halogen atom. Rcan also have a branched chain or a ring structure when the number of carbon atoms is 3 or more. Y is carbon atom or sulfur atom. a, o, n, p, q, and r are each predetermined integers. 

Ionic complex, electrolyte for nonaqueous electrolyte battery, nonaqueous electrolyte battery and ionic complex synthesis method

According to the present invention, there is provided a production process of a 2-fluoroacrylic ester including: a bromination step of converting a 2-fluoropropionic ester to a 2-bromo-2-fluoropropionic ester by reaction of the 2-fluoropropionic ester with a nitrogen-bromine bond-containing brominating agent in the presence of a radical initiator; and a dehydrobromination step of reacting the 2-bromo-2-fluoropropionic ester with a base. It is not necessary in this process to adopt very-low-temperature conditions and to use a stoichiometric amount of expensive reagent. The target 2-fluoroacrylic ester can be thus produced at low cost.

Process for preparation of 2-fluoroacrylic esters

The invention relates to a process for producing 1,1,1-trifluoroacetone, which is useful as an intermediate of pharmaceuticals and agricultural chemicals, or as a reagent for introducing fluorine-containing groups. This process includes the step of conducting a hydrogenolysis of a halogenated trifluoroacetone, which is represented by the formula [1], by a hydrogen gas, in a liquid phase containing water, in the presence of a catalyst containing a transition metal, where X represents a chlorine, bromine or iodine, and n represents an integer from 1 to 3. It is possible by the process to easily produce 1,1,1-trifluoroacetone with high purity.

Process for producing 1,1,1-trifluoroacetone

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Ube, Japan

Masataka Fujimoto