Synthesis, crystal structure, bioactivity and DFT calculation of new oxime ester derivatives containing cyclopropane moiety

Abstract A new series of oxime esters containing cyclopropane moiety were designed and synthesized. Their structures were confirmed by 1 H NMR, MS and elemental analysis. The single crystal structure of compound 7b was determined to further elucidate the structure. The KARI activity indicated that compound 7k exhibits favorable inhibition rate; the herbicidal assay showed that most of them have moderate activity against Echinochloa frumentacea , some of which have moderate activity against Brassica campestris .