Sumitomo Chemical Company, Limited

Mitsunobu Kawamura

Hiroaki Okamoto

Koji Hagiya

Junichi Ishikawa

Yoshio Onogawa

Masashi Takimoto

Tomonori Yamaoka

Kosuke Takebayashi

1-Aminocyclopropanecarboxylic acid non-hydrate can be obtained by treating 1-aminocyclopropanecarboxylic acid hydrochloride with a tertiary amine in the presence of a C-Calcohol and water, keeping the reaction mixture at 50&#xb0; C. or below, collecting the precipitated crystal of 1-aminocyclopropanecarboxylic acid 0.5 hydrate by filtration, and contacting the obtained crystal with a C-Calcohol.

Production method for 1-amino cyclopropane carboxylic acid nonhydrate

1-Aminocyclopropanecarboxylic acid non-hydrate can be obtained by treating 1-aminocyclopropanecarboxylic acid hydrochloride with a tertiary amine in the presence of a C-Calcohol and water, keeping the reaction mixture at 50&#xb0; C. or below, collecting the precipitated crystal of 1-aminocyclopropanecarboxylic acid 0.5 hydrate by filtration, and heating the obtained crystal to 80 to 245&#xb0; C.

Method for producing perfluoroalkanesulfonyl phenol compounds

A new process for producing a 2-(aryloxymethyl)benzaldehyde compound and the like are provided. More particularly, a process for producing a 2-(aryloxymethyl)benzaldehyde compound represented by formula (4) comprising step (A) of hydrolyzing a compound represented by the following formula (1); and step (B) of reacting a compound represented by formula (2) obtained in step (A) and a compound represented by formula (3) or a salt thereof is provided; in formulae, X, Xand Xeach represent independently a chlorine atom, a bromine atom or an iodine atom, Q, Q, Qand Qeach represent independently a hydrogen atom or a halogen atom, and Ar represents a phenyl group optionally having a substituent).

Method for producing 2-(aryloxymethyl) benzaldehyde compound

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Osaka, Japan

Mitsunobu Kawamura