Temperature-controlled solvent-free selective synthesis of tert-butyl peresters or acids from benzyl cyanides in the presence of the TBHP/Cu(OAc)<sub>2</sub> system
作者:H. Hashemi、D. Saberi、S. Poorsadeghi、Kh. Niknam
DOI:10.1039/c6ra27921j
日期:——
tert-butyl peresters was achieved via copper-catalyzed oxidative-coupling of benzyl cyanides with tert-butyl hydroperoxide in short reaction times. Various derivatives of tert-butyl peresters were synthesized by this pathway in good to excellent yields. Further investigation revealed that the above-mentioned protocol is effective for the synthesis of benzoic acid derivatives when the reaction is conducted
2-Acylpyridines were prepared by iridium-catalyzed [2 + 2 + 2] cycloaddition of α,ω-diynes with acyl cyanides. [Ir(cod)Cl]2/rac-BINAP or F-DPPE is an efficient catalyst for this reaction. The scope and limitations of this reaction have been disclosed.
Novel cholesterol biosynthesis inhibitors targeting human lanosterol 14α-demethylase (CYP51)
作者:Tina Korošec、Jure Ačimovič、Matej Seliškar、Darko Kocjan、Klementina Fon Tacer、Damjana Rozman、Uroš Urleb
DOI:10.1016/j.bmc.2007.10.001
日期:2008.1
Novelcholesterolbiosynthesisinhibitors, a group of pyridylethanol(phenylethyl)amine derivatives, were synthesized. Sterol profiling assay in the human hepatoma HepG2 cells revealed that compounds target human lanosterol 14alpha-demethylase (CYP51). Structure-activity relationship study of the binding with the overexpressed human CYP51 indicates that the pyridine binds within the heme binding pocket
Rh-Catalyzed Asymmetric Hydrogenation of 1,2-Dicyanoalkenes
作者:Meina Li、Duanyang Kong、Guofu Zi、Guohua Hou
DOI:10.1021/acs.joc.6b02678
日期:2017.1.6
efficient enantioselectivehydrogenation of 1,2-dicyanoalkenes catalyzed by the complex of rhodium and f-spiroPhos has been developed. A series of 1,2-dicyanoalkenes were successfully hydrogenated to the corresponding chiral 1,2-dicyanoalkanes under mild conditions with excellent enantioselectivities (up to 98% ee). This methodology provides efficient access to the asymmetric synthesis of chiral diamines
Three-Component Synthesis of α-Amino-α-aryl Carbonitriles from Arynes, Aroyl Cyanides, and<i>N</i>,<i>N</i>-Dimethylformamide
作者:Chao Zhou、Jing Wang、Jisong Jin、Ping Lu、Yanguang Wang
DOI:10.1002/ejoc.201400040
日期:2014.3
efficient synthesis of α-amino-α-aryl carbonitriles through the three-component reaction of arynes, aroylcyanides, and DMF in a single step is described. DMF was not only used as the solvent, but it also participated in the reaction as a component. Used as the cyanide sources, the aroylcyanides solved the toxicity and solubility problems associated with the use of HCN or metal cyanides in the Strecker