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Methylene-bridged bis(benzimidazolium) salt as a highly efficient catalyst for the benzoin reaction in aqueous media.

Iwamoto, Ken-ichi; Kimura, Hitomi; Oike, Masaaki; Sato, Masayuki.

Org Biomol Chem ; 6(5): 912-5, 2008 Mar 07.

Article in English | MEDLINE | ID: mdl-18292884

ABSTRACT

Benzoin reactions are catalyzed effectively by a methylene-bridged bis(benzimidazolium) salt to yield alpha-hydroxy ketones, and the reactions proceed in water as the aqueous medium under mild conditions.

Subject(s)

Benzimidazoles/chemistry , Benzoin/chemical synthesis , Methane/analogs & derivatives , Benzaldehydes/chemistry , Benzimidazoles/chemical synthesis , Benzoin/chemistry , Catalysis , Hydrocarbons/chemistry , Methane/chemistry , Molecular Structure , Salts/chemical synthesis , Salts/chemistry , Stereoisomerism , Water/chemistry

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