Synthesis and insecticidal evaluation of propesticides of benzoylphenylureas was written by Chen, Li;Wang, Qingmin;Huang, Runqiu;Mao, Chunhui;Shang, Jian;Bi, Fuchun. And the article was included in Journal of Agricultural and Food Chemistry in 2005.Reference of 18437-66-6 This article mentions the following:
Two series of benzoylphenylurea derivatives were synthesized as candidate propesticides by a nucleophilic addition reaction between 2,6-difluronbenzoyl isocyanate and N-substituted anilines. The new compounds were identified by 1H NMR spectroscopy, electron ionization-mass spectrometry, and elemental analyses. The bioactivities of the new compounds were evaluated. All of the propesticides were soluble in most organic solvents, and their hydrophobicities were improved. The result of the bioactivities of the new compounds against Oriental armyworm showed that some of the new compounds are active as compared to diflubenzuron and penfluron. In the experiment, the researchers used many compounds, for example, tert-Butyl (4-chlorophenyl)carbamate (cas: 18437-66-6Reference of 18437-66-6).
tert-Butyl (4-chlorophenyl)carbamate (cas: 18437-66-6) belongs to organic chlorides. Chlorinated organic compounds are found in nearly every class of biomolecules and natural products including alkaloids, terpenes, amino acids, flavonoids, steroids, and fatty acids. Alkyl chlorides are versatile building blocks in organic chemistry. While alkyl bromides and iodides are more reactive, alkyl chlorides tend to be less expensive and more readily available.Reference of 18437-66-6
Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics