Butanethiol → Chrysanthemic Acid

Participants

Reaction Steps

To a solution of cis chrysanthemic acid (1.0 g) in toluene (9 g) was added butanethiol (107 mg). Irradiation with a high pressure mercury lamp (100 W) was made for one hour. After the reaction was over, similar after-treatment as in Example 1 was applied to obtain chrysanthemic acid (0.9 g). A part of the product was converted to ethyl ester in a usual manner. Gas chromatography assay of the product gave the following isomer ratio: cis, 5.2%; and trans, 94.8%.

Provenance & Evidence