CYCLOALKANE DERIVATIVE, CARBOXYLIC ACID DERIVATIVE AND CUT-FLOWER FRESHNESS-PRESERVING AGENT USING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a novel compound which is useful as a cut-flower freshness- preserving agent. ;SOLUTION: This novel compound is represented by formula I (R¹ is a 1-8C alkyl, phenyl, phenethyl, styryl), typically 1-benzoylaminomethyl- cyclopropanecarboxylic acid. The compound of formula I can be produced through a variety of routes, but usual amidation reaction can be applicable in the case that 1-aminomethylcyclopropanecarboxylic acid is used as a starting substance. For example, 1-aminomethylcyclopropanecarboxylic acid is allowed to react with an acid halide of the formula: R¹COX (X is a halogen), preferably in the presence of a base (for example, NaOH) in a solvent (for example, toluene) at -20-100°C for 0.1-24 hours. The compound of the formula is inexpensive, has high retention effect of flower freshness, reduces the load to environments with low occurrence of phytotoxicity. In addition to the compound of formula I, 1-cyano-cyclopropanecarboxylic acid, compounds of formula II (R² is H, a 1-11C alkylcarbonyl or the like) may be preferably used.;COPYRIGHT: (C)1998,JPO