Celastrus angulatus

Wilfordin, tryptofordin and celangulin (Fig. 14) are antifeedant compounds obtained from extracts of the Celastraceae species Maytenus rigida [78], Trypterigium wilfordii [79] and Celastrus angulatus [77, 80], respectively, and as some products isolated from South American species have similar structural characteristics, they too have been assayed. 

The Chinese bittersweet Celastrus angulatus Max., is widely distributed in the People s Republic of China and has been used as a traditional insecticidal plant to protect other plants from insect damage. The plant is finely ground, suspended in water and sprayed over the crop to be protected [127]. 

Fig. (5). Insect antifeedant and insecticidal sesquitepenes from Celastrus angulatus...

Four new furanosesquiterpenes, merrekentrones A, B, C and D were isolated from the roots and rootstocks of Merremia kentrocaulos. Their structures were substantiated on the basis of spectroscopic data <01JNP1471>. Two new sesquiterpenoid polyol esters 1 and 2 were isolated from the root bark of Celastrus angulatus by bioassay-guided fractionation. 

Constit. of Celastrus angulatus. Insect antifeedant. Amorph. powder. 

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