57707-67-2Relevant academic research and scientific papers
Catalytic C(sp3)?H Arylation of Free Primary Amines with an exo Directing Group Generated In Situ
Xu, Yan,Young, Michael C.,Wang, Chengpeng,Magness, David M.,Dong, Guangbin
supporting information, p. 9084 - 9087 (2016/07/26)
Herein, we report the palladium-catalyzed direct arylation of unactivated aliphatic C?H bonds in free primary amines. This method takes advantage of an exo-imine-type directing group (DG) that can be generated and removed in situ. A range of unprotected aliphatic amines are suitable substrates, undergoing site-selective arylation at the γ-position. Methyl as well as cyclic and acyclic methylene groups can be activated. Furthermore, when aniline-derived substrates were used, preliminary success with δ-C?H arylation was achieved. The feasibility of using the DG component in a catalytic fashion was also demonstrated.
Substituted 2-amino-4-alkylamino-1,3,5-triazines as herbicides
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Page column 63, (2008/06/13)
The invention relates to novel substituted 2-amino-4-alkylamino-1,3,5-triazines of the formula (I) in which R1represents in each case optionally substituted alkyl having 2 to 6 carbon atoms or cycloalkyl having 3 to 6 carbon atoms, R2represents hydrogen or represents alkyl having 1 to 4 carbon atoms, A represents oxygen or methylene, Ar represents in each case optionally substituted phenyl, naphthyl or heterocyclyl, and Z represents hydrogen, represents halogen or represents in each case optionally substituted alkyl, alkoxy, alkylcarboxyl, alkoxycarbonyl, alkylthio, alkylsulphinyl, alkylsulphonyl, alkenyl or alkinyl, to processes and to novel intermediates for their preparation and to their use as herbicides.
