Solvent-Free N-Alkylation of Amides with Alcohols Catalyzed by Nickel on Silica-Alumina
作者:Aubin Charvieux、Louis Le Moigne、Lorenzo G. Borrego、Nicolas Duguet、Estelle Métay
DOI:10.1002/ejoc.201901291
日期:2019.10.31
To date, the N‐alkylation of amides with alcohols has not been studied with non‐noble metal base heterogeneous catalyst. Herein, a range of amide was efficiently N‐alkylated with various alcohols using cheap and easy to handle Ni/SiO2‐Al2O3.
迄今为止,尚未使用非贵金属碱多相催化剂研究酰胺与醇的N-烷基化。在此,使用廉价且易于处理的Ni / SiO 2 -Al 2 O 3将各种酰胺有效地与各种醇进行N-烷基化。
Alpha-helical mimetics
申请人:Lessene Guillaume Laurent
公开号:US20080153802A1
公开(公告)日:2008-06-26
Benzoyl urea derivatives that are alpha helical peptides mimetics that mimic BH3-only proteins, compositions containing them, their conjugation to cell-targeting-moieties, and their use in the regulation of cell death are disclosed. The benzoyl urea derivatives are capable of binding to and neutralizing pro-survival Bcl-2 proteins. Use of benzoyl urea derivatives in the treatment and/or prophylaxis of diseases or conditions associated with deregulation of cell death are also described.
Benzoyl urea derivatives that are alpha helical peptide mimetics that mimic BH3-only proteins, compositions containing them, their conjugation to cell-targeting moieties, and their use in the regulation of cell death are disclosed. The benzoyl urea derivatives are capable of binding to and neutralising pro-survival Bcl-2 proteins. Use of the benzoyl urea derivatives in the treatment and/or prophylaxis of diseases or conditions associated with deregulation of cell death are also disclosed.
Ammonium Nitrate: A Biodegradable and Efficient Catalyst for the Direct Amidation of Esters under Solvent-free Conditions
作者:Perla Ramesh、Nitin W. Fadnavis
DOI:10.1246/cl.140846
日期:2015.2.5
A simple, metal-free, and environment-friendly procedure is developed for the direct conversion of esters to amides using ammonium nitrate as a catalystundersolvent-freeconditions. Aryls, hetero...
Carboxyl Activation of 2-Mercapto-4,6-dimethylpyrimidine through N-Acyl-4,6-dimethylpyrimidine-2-thione: A Chemical and Spectrophotometric Investigation
作者:M.P. Rajan
DOI:10.14233/ajchem.2015.17607
日期:——
discovery of coupling reagents which gave an unprecedented impeteus to the development of peptide synthesis. Of course, in these methods high reactivity of carboxyl function towards nucleophilic attack is achieved, but rigorous conditions such as use of base, temperature etc. are required. Moreover, the electron withdrawing groups like halogen which enhances the electrophilicity of carboxyl carbon, increases