Synthesis and X-ray crystal structures of three new nickel(II) complexes of benzoylhydrazones: Catalytic applications in the synthesis of 2-arylbenzoxazoles
作者:Samaresh Layek、Bhumika Agrahari、Akash Kumar、Necmi Dege、Devendra D. Pathak
DOI:10.1016/j.ica.2019.119222
日期:2020.1
complexes of nickel(II), having general formula [Ni(L1)(PPh3)] (1), [Ni(L1)(4-picoline)] (2), and [Ni(L2)(4-picoline)] (3) were synthesized by the reaction of Ni(OAc)2·4H2O with corresponding benzolyhydrazine-derived Schiff base ligands i.e. [4-(diethylamino)-2-hydroxybenzylidene]-benzohydrazonic acid (H2L1) or [2-(hydroxynaphthalen-1-yl)methylene]-benzohydrazonic acid (H2L2) and PPh3/4-picoline as co-ligand
Synthesis of Hydrazide-Containing Chroman-2-ones and Dihydroquinolin-2-ones via Photocatalytic Radical Cascade Reaction of Aroylhydrozones
作者:Yu Zhao、Jia-Rong Chen、Wen-Jing Xiao
DOI:10.1021/acs.orglett.6b03174
日期:2016.12.16
A general and efficient visible light photocatalytic a-amino carbon radical -based cascade reaction of aroylhydra-zones has been described. This protocol tolerates a wide array of alpha-silylamines and aroylhydrazones to afford the corresponding diversely functionalized hydrazide-containing chroman-2-ones and dihydroquinolin-2-ones in generally good yields with excellent diastereoselectivities.
N-2-Hydroxybenzaldehyde acylhydrazone–Fe(<scp>iii</scp>) complex: synthesis, crystal structure and its efficient and selective N-methylation
作者:Zhiyou Li、Lamei Wu、Tao Zhang、Zhengxi Huang、Guofu Qiu、Zhongqiang Zhou、Longfei Jin
DOI:10.1039/c4dt00121d
日期:——
The n-acylhydrazone–Fe(iii) complexes permit ligand's amide N to be easily methylated and suppress the O-methylation side reactions of phenol.