Sumitomo Chemical Company, Limited

Yoshio Onogawa

Masashi Takimoto

Tomonori Yamaoka

Masaji Hirota

Mitsunobu Kawamura

Kazuyoshi Yamanaka

A process for obtaining an industrially useful 2-chloromethylbenzaldehyde-containing liquid composition at a high yield is provided. More specifically, a process for producing 2-chloromethylbenzaldehyde comprising step (A) of mixing 1-dichloromethyl-2-chloromethylbenzene and sulfuric acid having a concentration of 84.5% by weight or more; and step (B) of mixing a mixture obtained in step (A) and water is provided.

Method for producing 2-chloromethylbenzaldehyde, 2-chloromethylbenzaldehyde-containing composition, and method for storing same

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

A new process capable of producing a 2-(aryloxymethyl)benzaldehyde compound is provided. More particularly, a process for producing a 2-(aryloxymethyl)benzaldehyde compound represented by formula (2) comprising a step of hydrolyzing a compound represented by following formula (1); wherein 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.

A method of producing a corresponding acetal compound which comprises reacting a benzal halide compound represented by formula (1) (wherein, Q represents a hydrogen atom or a halogen atom, X represents a halogen atom, and Ar represents a phenyl group optionally substituted with at least one group selected from the group consisting of alkyl groups having 1 to 4 carbon atoms and halogen atoms.) and an alcohol compound in the presence of at least one alkaline earth metal compound selected from the group consisting of alkaline earth metal oxides, alkaline earth metal hydroxides and alkaline earth metal carbonates.

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Shizuoka, Japan

Yoshio Onogawa