This work was supported by the National Natural Science Foundation of China(21901185,22002037);the Innovation and Entrepreneurship Training Programme for University Students(202110546007);the Scientific Research Hunan Provincial Education Department(19A068);funds provided by Tianjin Normal University.
Directing group-assisted, transition metal-catalyzed three-component difunctionalization of alkenes has emerged as a powerful tool to drive molecular complexity. However, this strategy generally works with the substra...
The authors are grateful to Chinese Academy of Sciences(supported by the Strategic Priority Research Program,grant XDB20020200&QYZDJ-SSW-SLH029);the National Natural Science Foundation of China(grant 21621002,21831009 and 21991110)for their financial support.
Some 4-hydroxy-picolinic acid derived amides were revealed as more efficient ligands for Cu-catalyzed coupling of(hetero)aryl halides with secondary phosphine oxides and phosphites.Only 3—5 mol%CuI and ligands were r...
Financial support from the National Natural Science Foundation of China (NSFC Nos. 21176179, U1510203, 21325626)
The dehydration of 2-picolinamide to produce 2-cyanopyridine was investigated thoroughly using silica supported potassium oxide as a heterogeneous catalyst. Both large specific surface area and pore size of SiO_2 (B) ...
National Natural Science Foundation of China for the grants(Nos.21001009 and 50973003);the State Key Project for Fundamental Research of MOST(No.2011CB808304);National High-tech R&D Program of China(863 Program) of MOST (No.2010AA03A406);the Scientific Research Project of Beijing Municipal Commission of Education;Beijing Natural Science Foundation(No.KZ201310028032)
The novel coordination structures of europium and terbium chloride-picolinamide complexes (EuCl3-(C6H6N2O)2.5H2O, Eu-pa and TbCl3.(C6H6N2O)2.5H2O, Tb-pa) are reported. The crystal structures in the solid state a...
The title compound, 2-pyridinecarboxamide, C6H6N2O, crystallize in the monoclinic system with space group P21/n (No14), Z = 4, and unit cell parameters a = 5.2074(1) , b = 7.1004(1) , c = 16.2531(3) , = 100.260(1)o. T...
Thanks for the support of the National Natural Science Foundation of China (No.20376059).
Three full-substituted calix[6]arenes containing the picolinamide groups were synmesized and characterized by IR, ^1HNMR and MS, after series reactions, including lower rim etherification, upper rim ipso-nitration, re...
A hydrogen-bonded supermolecular compound [(C6H5N2O)3·Cu1.5]·6H2O was synthesized from picolinamide and Cu(NO3)2·6H2O at the presence of sodium pyrophosphate decahydrate. It crystallizes in triclinic, space gro...
Using Cu(II) as the template, a complex {[Cu2L2(H2O)2]·4H2O}n (L = N-acetoxyl- picolinamide) has been successfully synthesized and characterized by single-crystal X-ray diffrac- tion. The crystal is of monoclinic, ...