45815-08-5Relevant articles and documents
Dithioacetal-containing pyridopyrimidone derivative as well as preparation and application thereof
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Paragraph 0047-0049, (2021/09/04)
The invention relates to a dithioacetal-containing pyridopyrimidone derivative as well as preparation and application thereof. The compound disclosed by the invention has a structure as shown in a formula (I) in the specification, has excellent insecticidal activity on sogatella furcifera, broad bean aphids and the like, and has a relatively good prevention and treatment effect on potato Y viruses at the same time. The compound can be used for preventing and treating hemiptera pests such as rice planthoppers and aphids, and also can be used for preventing and treating plant viruses such as potato Y viruses. The structure and the preparation process are simple, and the production cost is low.
Cationic iridium-catalyzed enantioselective activation of secondary sp 3 C-H bond adjacent to nitrogen atom
Pan, Shiguang,Matsuo, Yusuke,Endo, Kohei,Shibata, Takanori
, p. 9009 - 9015 (2012/10/30)
A cationic Ir(I)-tolBINAP complex catalyzed an enantioselective C-C bond formation, which was initiated by secondary sp3 C-H bond cleavage adjacent to nitrogen atom. A wide variety of 2-(alkylamino)pyridines and alkenes were selectively transformed into the corresponding chiral amines with moderate to almost perfect enantiomeric excesses. Alkynes were also investigated as coupling partners. The effect of alkyl structure in substrates and directing groups were studied. This transformation represents the first example of a highly enantioselective C-H bond activation of a methylene group, not at allylic or benzylic position.
General and mild preparation of 2-aminopyridines
Londregan, Allyn T.,Jennings, Sandra,Wei, Liuqing
supporting information; experimental part, p. 5254 - 5257 (2011/02/24)
A general and facile one-pot amination procedure for the synthesis of 2-aminopyridines from the corresponding pyridine-N-oxides is presented as a mild alternative to SNAr chemistry. A variety of amines and heterocyclic-N-oxides participate effectively in this transformation which uses the phosphonium salt, PyBroP, as a means of substrate activation.