English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

Cockroaches are urban pests that are very difficult to control. Using repellents is a green, safe and effective strategy for their control. In order to find novel cockroach repellents, the repellent activity of 45 bridged-ring terpenoid derivatives synthesized from β-pinene against  Blattella germanica  was tested. The relationship between the molecular structure of these bridged-ring terpenoid derivatives and their repellent activity against  Blattella germanica  was also analysed. The results show that some of the bridged-ring terpenoid derivatives exhibit good repellent activity against  Blattella germanica , and six compounds (RR = 60.44–87.32%) show higher repellent activity against  Blattella germanica  than DEET (RR = 54.77%), making them promising for development as new cockroach repellents. Quantitative structure–activity relationship (QSAR) analysis revealed that the HOMO-1 energy, Kier and Hall index (order 2), Balaban index, and relative positive charged surface area of bridged-ring terpenoid derivatives have effects on repellent activity against  Blattella germanica . The present study may provide a theoretical basis for the high-value use of β-pinene and can be helpful to the development of novel repellents against  Blattella germanica .

Experimental evaluation and structure–activity relationship analysis of bridged-ring terpenoid derivatives as novel Blattella germanica repellent