A new preparative method of 4-hydroxybenzofuran-2-carboxylic acid derivatives.

Seiji Yamaguchi,Kenichi Yamamoto,Toshinori Ueda,Tetsuya Morikawa,Yoshiyuki Kawase

A new preparative method of 4-hydroxybenzofuran-2-carboxylic acid derivatives.

1989

Seiji Yamaguchi
Kenichi Yamamoto
Toshinori Ueda
Tetsuya Morikawa
Yoshiyuki Kawase

4-Oxo-4,5,6,7-tetrahydrobenzofuran-2-carboxylic acid was prepared from 1,3-cyclohexanedione and ethyl bromopyruvate. Dehydrogenation of this acid or its methyl ester gave 4-hydroxybenzofuran-2-carboxylic acid derivatives.

Keywords:

Addition reaction
Diketone
Chemistry
Bicyclic molecule
Dehydrogenation
Inorganic chemistry
Organic chemistry
Haloketone
Carboxylic acid
Phenols

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