280566-45-2Relevant articles and documents
COMPOUNDS WITH NEMATICIDAL ACTIVITY
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Page/Page column 125; 126, (2013/05/22)
The present invention relates to the use of known pyridyl carboxamide derivatives and novel pyridyl carboxamide derivatives as nematicides, compositions containing such compounds and methods for the control of nematodes.
Three chloro(trifluoromethyl)pyridines as model substrates for regioexhaustive functionalization
Cottet, Fabrice,Schlosser, Manfred
, p. 3793 - 3798 (2007/10/03)
As a further test of the concept of regioexhaustive functionalization, 2-chloro-6-(trifluoromethyl)pyridine, 2-chloro-5-(trifluoromethyl)pyridine and 3-chloro-4-(trifluoromethyl)-pyridine were each converted into the three possible carboxylic acids 2, 4, 6, 8, 10, 12, 16, 17 and 20. This was achieved by employing several, but not all of the organometallic "tool-box methods": transformation of a more basic organometallic species into a less basic isomer by transmetalation-equilibration, site discriminating deprotonation with lithium N,N-diisopropylamide or lithium 2,2,6,6- tetramethylpiperidide, regio-divergent iodine migration and steric screening of acidic positions by a bulky trialkylsilyl group. Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2004.