Abstract
Four kinds of quaternary ammonium compounds were prepared from triethanolamine isobornyl maleate and terpenyl bromides obtained by bromination of terpenealcohols such as isoborneol, geraniol, citronellol, dihydrocitronellol with hydrobromic acid. The triethanolamine isobornyl maleate was prepared from triethanolamine and isobornyl maleic acid half ester obtained by hydrolysis of alkyl isobornyl maleates with dil. alkali aqua. solution.
Antimicrobial activities of these quaternary ammonium compounds were investigated.