Room-temperature cobalt-catalyzed arylation of aromatic acids: overriding the ortho-selectivity via the oxidative assembly of carboxylate and aryl titanate reagents using oxygen
作者:Kun-Ming Liu、Rui Zhang、Xin-Fang Duan
DOI:10.1039/c5ob02496j
日期:——
A room temperature phosphine or NHC ligand-free cobalt-catalyzed arylation of (hetero)aromatic acids has been developed.
室温下,一种无需膦或NHC配体的钴催化的芳香酸(包括杂芳香酸)的芳香基化反应已经开发出来。
Selective Reductive Removal of Ester and Amide Groups from Arenes and Heteroarenes through Nickel-Catalyzed C−O and C−N Bond Activation
a hydrosilane were used for the efficient reductive defunctionalization of aryl and heteroaryl esters through a decarbonylative pathway. This versatile method could be used for the removal of ester and amide functional groups from various organic molecules. Moreover, a scale‐up experiment and a synthetic application based on the use of a removable carboxylic acid directing group highlight the usefulness
Design and synthesis of cis-restricted benzimidazole and benzothiazole mimics of combretastatin A-4 as antimitotic agents with apoptosis inducing ability
作者:Md. Ashraf、Thokhir B. Shaik、M. Shaheer Malik、Riyaz Syed、Prema L. Mallipeddi、M.V.P.S. Vishnu Vardhan、Ahmed Kamal
DOI:10.1016/j.bmcl.2016.06.044
日期:2016.9
colchicine sitebindingtubulininhibitors were designed and synthesized by the modification of the combretastatin A-4 (CA4) pharmacophore. The ring B was replaced by the pharmacologically relevant benzimidazole or benzothiazole scaffolds, and the cis-configuration of the olefinic bond was restricted by the incorporation of a pyridine ring which is envisaged by the structural resemblance to a tubulin inhibitor