Insecticidal Pyrroles

Dioxapyrrolomycin, isolated from a Streptomyces strain, was found to have moderate activity against a number of insects and mites and to be a potent uncoupler of oxidative phosphorylation. These findings, along with the novel structure, led to a search for acidic halogenated nitropyrroles, and pyrroles with other substituent combinations, with useful insecticidal or other pesticidal activity. A progession of new pyrroles described here has led to AC 303,630 which has been chosen for commercial development as a broad-spectrum insecticide/miticide.