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Synthesis and juvenile hormone activity of benzimidazolylterpenes possessing a 2,7-dimethyloctane skeleton

✍ Scribed by Petrushkina, Elena A; Polonic, Natalia B; Ivanova, Galina B

Publisher
John Wiley and Sons
Year
1999
Tongue
English
Weight
84 KB
Volume
55
Category
Article
ISSN
1526-498X

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✦ Synopsis

con®guration at the amine moiety were inactive. The [(S)acid, (R)amine]-isomer was the most active, both in inhibiting fungal melanin biosynthesis in vitro and in pot tests on rice blast disease.

Racemization at the C-2 position of the acid moiety bearing the cyano group proceeds easily under basic conditions. Thus, the compound having the (RS)-con®guration at the acid and the (R)-con®guration at the amine moiety and containing enolizable hydrogen at the C-2 position of the acid is being developed as a new rice blasticide (S-2900, proposed common name diclocymet). It should be added that some related amides with an (S)-con®guration at the amine moiety have been reported to be more herbicidal than bromobutide. 2

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