Synthesis of Dienamides via the Reaction of Nitrile with Allylindium Reagents and Intramolecular Acyl Group Quenching Cascade
作者:Sung-Hwan Kim、Yu-Mi Kim、Jae-Nyoung Kim
DOI:10.5012/bkcs.2010.31.8.2351
日期:2010.8.20
synthesized in reasonable yields from benzonitriles having an amide moiety at the ortho-position, via the sequential (i) In-mediated allylation of nitrile moiety to form an imine intermediate, (ii) intramolecular quenching of an acyl group by the imine intermediate, and (iii) a proton transfer to dienamide.
Iron and Phenol Co-Catalysis for Rapid Synthesis of Nitriles under Mild Conditions
作者:Hong Meng、Sen Gao、Meiming Luo、Xiaoming Zeng
DOI:10.1002/ejoc.201900831
日期:2019.7.31
Using inexpensive and environmentally benign FeCl3 and 2,6‐di‐tert‐butyl‐4‐methylphenol as cooperative catalyst, benzoyl aldehyde oximes converted into nitriles in excellent yields within minutes under mild reaction conditions.
A facile synthesis of aryl esters is developed by coupling aryl carboxylicacids and aryl boronicacids in the presence of PhI(OAc)2 and carbonyl diimidazole. A wide range of functional groups were tolerant to the metal-free reaction condition that led to the desired products in good yields.
Kinetic study of hydrolysis of benzoates. Part XXIV—Variation of theortho substituent effect with solvent in the alkaline hydrolysis of substituted phenyl benzoates
The second-order rate constants k2 (M−1 s−1) for the alkaline hydrolysis of meta-, para- and ortho-substituted phenyl benzoates, C6H5CO2C6H4X, in aqueous 0.5 Mn-Bu4NBr were measured spectrophotometrically. The dependence of substituent effects, especially ortho inductive, resonance and steric terms on different solvent parameters, was studied using the following equation:
在水0.5 M n中,对间,对位和邻位取代的苯甲酸苯酯C 6 H 5 CO 2 C 6 H 4 X 进行碱水解的二级速率常数k 2(M -1 s -1)分光光度法测定-Bu 4 NBr。使用以下方程式研究了取代基效应(尤其是邻位诱导,共振和空间项)对不同溶剂参数的依赖性: