Process for the manufacture of insecticidal, nematicidal and acaricidal 2-aryl-3-substituted-5-(trifluoromethyl)pyrrole compounds from N-(substituted benzyl)-2,2,2-trifluoro-acetimidoyl chloride compounds

Granted: Sep 8, 1992 Filed: Sep 9, 1991

This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.