Ihara Chemical Industry Co., Ltd.

Takeda Chemical Industries, Inc.

Nec Tokin Corporation

Naoto Yazawa

Hidetaka Hiyoshi

Yoshinori Saito

Toshihiko Nishiyama

Tomoki Nobuta

Masaya Mitani

Naoki Takahashi

Hideo Ooi

Noriyuki Ozawa

Keinosuke Ishikame

Tetuya Yoshinari

The present invention provides a novel indole carboxylic ester trimer which is characterized by being represented by the following general formula (1): wherein R represents a straight or branched chain alkyl group having 1-6 carbon atoms; n is an integer of 1-4; Xrepresents at least one anion selected from a group of anions having a valency of 1-3 consisting of chloride ion, bromide ion, iodide ion, fluoride ion, nitrate ion, sulfate ion, hydrogen sulfate ion, phosphate ion, borofluoride ion, perchlorate ion, thiocyanate ion, acetic acid ion, propionic acid ion, methanesulfonic acid ion, p-toluenesulfonic acid ion, trifluoroacetic acid ion and trifluoromethanesulfonic acid ion; a represents the ionic valence number of X and is an integer of 1-3; and m is 0-0.5.

Indolecarboxylic ester trimer and electrochemical cell using the same

Process for production of 2-substituted benzo[b]thiophene

A process for production of 2-acetylbenzo[b]thiophene represented by the formula (I): ##STR1## comprising the steps of: (1) reacting 2-halogenobenzaldehyde represented by the formula (II): ##STR2## wherein X represents a halogen atom, with a compound represented by the formula (III):

Process for production of 2-acetylbenzo[b]thiophene

Process for producing halomethyl ester of aliphatic carboxylic acid

A process for producing a halomethyl pivalate which comprises reacting an aqueous solution of a metal salt of pivalic acid with a dihalomethane selected from the group consisting of bromochloromethane, chloroiodomethane and bromoiodomethane in the presence of a phase transfer catalyst.

Process for producing a halomethyl pivalate

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Shizuoka, Japan

Naoto Yazawa