On February 28, 1990, Sobotka, Wieslaw; Styczynska, Bogumila; Balicki, Roman; Kozlowska, Margarita; Krzeminska, Alicja; Kaczmarek, Lukasz; Ejmocki, Zdzislaw published a patent.Quality Control of [2,2′-Bipyridine]-3,3′-diamine The title of the patent was Preparation of new bis[3-(2,6-disubstituted benzoyl)-1-ureyl]bipyridines as insecticides. And the patent contained the following:
Title compounds I (R, R1 = H, C1-4 alkoxy, halo, CF3) are prepared by reaction of corresponding disubstituted benzoyl isocyanates with bipyridine diamines in an inert solvent at 20-120°. For example, 4,4′-bipyridine-3,3′-diamine reacted with 2 mol equiv 2,6-ClFC6H3CONCO in CH2Cl2 at 40° to give 86.3% title compound II. Eight I showed varying degrees of effectiveness as chitin synthesis inhibitors when applied to larval Musca domestica. The experimental process involved the reaction of [2,2′-Bipyridine]-3,3′-diamine(cas: 75449-26-2).Quality Control of [2,2′-Bipyridine]-3,3′-diamine
The Article related to benzoylureylbipyridine preparation insecticide, bipyridine benzoylureyl preparation chitin inhibitor, Heterocyclic Compounds (One Hetero Atom): Pyridines and other aspects.Quality Control of [2,2′-Bipyridine]-3,3′-diamine