| 摘要 |
PROBLEM TO BE SOLVED: To provide methods for the racemization and/or the trans-rich formation of a cyclopropanecarboxylic acid. SOLUTION: The methods for the racemization and/or the trans-rich formation of the vinyl group-substituted cyclopropanecarboxylic acid comprise reacting a vinyl group-substituted cyclopropanecarboxylic acid represented by formula (1) (R<SP>1</SP>, R<SP>2</SP>, R<SP>3</SP>and R<SP>4</SP>are each independently hydrogen atom, a halogen atom, a 1-4C alkyl group which may be substituted, an aryl group which may be substituted or an alkoxycarbonyl group which may be substituted and R<SP>1</SP>and R<SP>2</SP>may be bonded to form a ring; X is hydroxy group, a halogen atom, a 1-20C alkoxy group which may be substituted or an aryloxy which may be substituted) with a nitric acid compound or a nitrogen oxide. COPYRIGHT: (C)2004,JPO |
