622-84-4Relevant articles and documents
The Base-Promoted Annulation of 2-Hydrazinyl Pyridine and CO2 toward Triazolones
Wu, Xiaopeng,Sun, Song,Wang, Bingbing,Cheng, Jiang
supporting information, p. 3855 - 3859 (2017/11/15)
A base-promoted annulation of 2-hydrazinyl pyridine and atmospheric pressure of CO2 has been developed in the presence of silane as reducing reagent, affording a series of triazolones in moderate to excellent yields. CO2 served as a carbonyl source in this transfomation. Moreover, benzamidrazones also worked well under this procedure. Thus, it represents a green, sustainable and straightforward pathway to access triazolone frameworks. (Figure presented.).
An eco-benign and highly efficient procedure for N-acylation catalyzed by heteropolyanion-based ionic liquids using carboxylic acid under solvent-free conditions
Chen, Zhikai,Fu, Renzhong,Chai, Wen,Zheng, Hao,Sun, Lin,Lu, Qiang,Yuan, Rongxin
, p. 2237 - 2245 (2014/03/21)
An eco-benign and highly efficient route for N-acylation of amines has been developed by treating amines with corresponding carboxylic acids in the presence of 2 mol % of heteropolyanion-based ionic liquids as catalysts under solvent-free conditions. This practical reaction could tolerate a wide range of substrates. Thus, various N-acylation products including N-acyl α-amino acid derivatives were obtained in moderate to excellent yields at 70 C to 120 C. Moreover, recycling studies revealed that heteropolyanion-based ionic liquids were easily reusable for this N-acylation. This method provides a green and much improved protocol over the existing methods.
N-PHENYL-1,1,1-TRIFLUOROMETHANESULFONAMIDE HYDRAZONE DERIVATIVE COMPOUNDS AND THEIR USAGE IN CONTROLLING PARASITES
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Page/Page column 37, (2008/06/13)
Novel N-phenyl-1,1,1-trifluoromethanesulfonamide compounds useful for controlling endo and/or ectoparasites in the environment are provided, together with methods of making the same, and methods of using the inventive compounds to treat parasite infestations in vivo and ex vivo.